@book{ Solr-11275, title = {Qualitätslehre}, author = {Masing, Walter.}, editor = {Masing, Walter.}, address = {Berlin, Frankfurt (am Main), Berlin, Köln}, publisher = {ASQ}, year = {1972}, pages = {73}, note = {Originally published in the magazine Qualität und Zuverlässigkeit, 1970}, note = {deutsch}, }