books.google.fr - Ever since the boom of spectrum analysis in the 1860s, spectroscopy has become one of the most fruitful research technologies in analytic chemistry, physics, astronomy, and other sciences. This book is the first in-depth study of the ways in which various types of spectra, especially the sun's Fraunhofer...https://books.google.fr/books/about/Mapping_the_Spectrum.html?hl=fr&id=WceRw3sr-rQC&utm_source=gb-gplus-shareMapping the Spectrum
