For scientific work, knowledge of earlier research subjects and results is particularly important. Only a part of dissertation theses, theses for a degree, working papers, and surveys is published in the form of books or in specialist journals. Many, however, are available on internet pages or servers of universities. But these studies are scattered among many Internet appearances and are often drowned in the flood of unwanted adverts.
Thus, even if always it will be only fragmentary and subjective, on the following pages there shall be trying to offer a certain overview on interesting and freely accessible research results for a start: