Perspective from a Younger Generation -- The Astro-Spectroscopy of   Gisbert Winnewisser
  Gisbert Winnewisser's astronomical career was practically coextensive with the whole development of molecular radio astronomy. Here I would like to pick out a few of his many contributions, which I, personally, find particularly interesting and put them in the context of newer results. 
K.M. Menten (1) ((1) Max-Planck-Institut fuer Radioastronomie)