found: Int'l. Cong. on Hamito-Semitic Linguistics (4th : 1983 : Marburg, Germany). Proceedings of the Fourth ... 1986:CIP t.p. (Walter W. Müller; Phillipps Univ., Marburg)
found: A.F.L. Beeston at the Arabian Seminar, 2005:title page (including a personal reminiscence by W. W. Müller)
found: LC data base, 6-20-86(hdg.: Müller, Walter W.)
found: Wikipedia, May 27, 2015(Walter W. Müller. Walter Wilhelm Müller (born 26 June 1933 in Weipert in the Ore Mountains) is a German specialist in the field of ancient South Arabia and Semitic epigraphy)