Titlebook: Heidelberger Jahrbücher; Universitäts-Gesellschaft Heidelberg Book 1994 Springer-Verlag Berlin Heidelberg 1994 Astronomie.Forschung.Geschi

Aphorism

Gilbert Tournoyomparison of several independent methods directed at a single property. Accordingly, we shall illustrate the characterization problem by a brief consideration of selected concepts and methods of a fundamental nature.

alliance

Indigence

Franz-Ulrich Willekee obtained by correct selection of the prism. . gives the useful infra-red frequency ranges for several types of prism, but it is towards the lower frequencies in the quoted ranges that the prism material is most efficient.