European Research Papers Archive

General help

Help menu:

  • Note that there is a glossary for all words in [square brackets].

The short search form

There are two forms for searching ERPA: a short one which includes only two options: the "Quick update" and the (simple) "Search" and a longer one which gives you a variety of options ("Advanced Search").

Note that these three search options work independently from each other; therefore, the number of months given in the quick update does not effect the result of the simple search mode and vice versa.

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Quick update

Independently from the simple search (described below), there is an alternative search mode which updates you on the most recent inputs into the ERPA database. You have three options as to the time span: one, three or six months: just chose the appropriate figure in the menu on the right. The default option is , i.e. the last three months. Just click on the Update me ! button. The result will be the latest papers, ordered by publication date.

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(Simple) Search

This option allows you search quickly the authors' and titles' fields of the ERPA database only:

Just type in a single word which should be either an author's name or a part of the title and press the Search ! button.

It doesn't matter whether you use upper or lower cases: this search mode is not case-sensitive.
If you leave the input field empty and press the button, the result will be an ordered list of all papers currently available in the ERPA database.
For more details about the allowed strings, truncation etc, please refer to the next section.

If you are not content with the result of your query, consider using the detailed search mode!

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Advanced search: the basics

To search the ERPA database, you only need to click on the Search ! button.

If you do not fill in a single [input field], the search result will consist of all papers currently in the database, ordered by date of publication. (The [search-engine] assumes that each paper matches with respect to a field if it is left empty.)

If you fill in one or several input fields, the search result will be more precise.

To fill in the form, you simply use your mouse or press the TAB key on your keyboard to put the cursor in the respective field and start writing.
Insert the [search string]: It does not have to be an entire word; any set of letters is possible; therefore it is not necessary to truncate with * or ?. However:
"Truncation": It is possible to [truncate] the search string: there are two possibilities:
1. The question mark ("?") is a joker for one letter (but not for a blank/space);
2. The asterix ("*") is a joker for several letters (bot not for a blank/space).
Examples: The input "Ma?er" in the author field might find authors with the following names: "Mayer", "Maier", "Maler" etc.
If you enter "Ma*r", the above mentioned authors might be found, but also "Mayr" and "Mayerhofer"; but not: "Mac Erie".
Please note that if using the asterix, the results might be quite estonishing: The input "f*r" not only results in "Falkner" but also in "Lewis, Jeffrey" since the ERPA database cannot distinguish between surnames and first names. In order to improve your result, you may switch to "case sensitive" and enter "F*r".
Consider to truncate a word if you are not sure about the exact spelling, in particular if the word may contain special characters (e.g. accents).
Example: If you search for the author "Noël", you would not find him with "Noel", but with "No?l".
Apart from the letters on your keyboard, there is a list of special characters allowed. You may enter them via their code, e.g. while pressing the ALT-key of your keyboard and typing 0 2 3 5 will produce an "ë".

By default, the input fields are connected with the logical expression AND ("must contain" or "must be"). Therefore, if you fill in more than one input field, the search-engine will find ERPA papers which match both or – in case of entries in more than two fields – all requirements.

Example: If you have entered a name in the author field and a word in the title field, only ERPA papers of this particular author whose articles' titles contain the specified word will be given as the result.

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case sensitive vs. not case sensitive

As the default solution, the [search-engine] does not distinguish between words ([search strings]) with an upper case at the beginning and those without.

Example: "European" and "european" are treated equally.

If, however, you choose the option in the menu on the top of the search form (next to the button for "general help"), only ERPA papers which contain the words with either lower or upper cases – just as you have entered them – will be found.

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must contain vs. must not contain

As already mentioned above, the various [input fields] are connected with a logical AND, i.e. only papers will be found that include the [search string]. You may however choose the option in the menu in front of each input field. In this case, only ERPA papers NOT containing the words specified in the input field will be found.

The field "date of publication" presents a special case: the options there are (AND) and (AND NOT) between the two dates.
Note also that this general rule does not apply to the keywords, see here for details.

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Clear form button

If you press on the Clear form button, all entries in the [input fields] will be deleted and all changes from the default options (e.g. "must not contain" or "case sensitive" will be reset to the default solutions and all your entries so far will be deleted.

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[input field]
The white spaces with frames where you may enter a search string, i.e. words or numbers to search for.
A special feature of recent browsers which allows e.g. for some animation of web sites. See the online manual of your browser for details.
This is the software carrying out your search request and presenting the results.
[search string]
One or several strings (letters) up to full words or groups of words entered in an [input field].
Replacing one or several strings (letters, digits) of a search string (word, figure) by a "joker", i.e. a sign (here: * or ?) which will be interpreted by the search-engine as any (allowed) string.

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