The word index of the works titles enables the user to search for individual words occurring in titles of secondary literature, thus further expanding the possibilities for thematic searching. The verse concordance, a tool in its own right, enables the user to seek out the occurrences of all but the most common words in the text of Parzival , e.g. schame 'shame' or ritter 'knight', and thence to go straight to the line references with the specific details. Thus it is possible to obtain information in a wide variety of ways. In addition, there are numerous cross-links, so the user is able to approach the search from a variety of angles and eventually return to the starting point. In the HTML version all data can easily be saved by the user and printed at will.
Different browsers function in different ways.
Overall, we have found Netscape to be most reliable and to offer the best options for printing, e.g. the ability to print preview, not offered by Internet Explorer, and thus to select a particular page or pages from a range for printing. There are no restrictions on the amount of text that can be downloaded or printed, which is of course in the user's interests though not necessarily in those of the publisher, for whom copyright is a major consideration. Updating the Database We are now working backwards in time towards the early beginnings of Parzival -research in the 1830s. Fortunately, the earlier one goes back, the sparser are the publications and the more selective one can be, but our aim is to provide complete coverage of all relevant aspects of Wolfram research. As new Decke-Cornill bibliographies appear, we shall also include these, so there will always be a need to update.