Irradiation with the alpine sun quartz lamp : including some account of luminous heat rays / by Hugo Bach ; with the assistance of Ferdinand Rohr ; authorised English edition, edited by R. King Brown.

Anleitung und Indikationen für Bestrahlungen mit der Quarzlampe "Künstliche Höhensonne" / von Hugo Bach ; unter Mitarbeit von Ferdinand Rohr [and others].

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