Heckmann, P. H. Introduction to the spectroscopy of atoms / P. H. Heckmann and E. Trabert ; translated from the German by S. Bashkin. - Amsterdam : North-Holland Physics, c1989. - x, 284 p. - North-Holland personal library . ISBN: 0444869492 (pbk.) 0444873252 (hbk.) LCCN: 90013161 Subjects--Topical Terms: Atomic spectra--Study and teaching (Higher)