The publication in 1816 of Bopp's Über das Conjugationssystem can be considered the beginning of a systematic comparison of Indo-European languages, and thus as having led too the development of the study of language as a science, distinct from philology. The Analytical Comparis…
The contents address a wide range of issues regarding the formal and functional categories to be reconstructed for the PIE verb and their development into the attested verbal systems of the older Indo-European languages. --
Indo-European linguistics
by Mayrhofer, Manfred, Meier-Brügger, Michael, Fritz, Matthias
This textbook is designed as an introduction to the field. It presents current topics and questions in Indo-European linguistics in a clear and informative manner.