found: LCCN 58-13895: His A primer of programming for digital computers, 1959(hdg.: Wrubel, Marshal H.)
found: LC data base, 1-18-84(hdg.: Wrubel, Marshal H.)
found: Proceedings of the National Science Foundation Conference on Stellar Atmospheres, 1955?:t.p. (Marshal H. Wrubel) pref. (Indiana University)
found: Wikipedia, viewed Oct. 24, 2017(Marshal Henry Wrubel; b. 31 March 1924 in New York City - 26 October 1968; was a child prodigy in music, an astrophysicist, and the first director of Indiana University's Research Computing Center; 1944 he graduated from Juilliard and also graduated from CUNY with a B.A. in physics; 1949 University of Chicago, Ph.D in astrophysics; at Indiana University he became in 1950 an assistant professor and in 1966 a full professor of astronomy)
found: OCLC, Oct. 24, 2017(access points: Wrubel Marshal Henry, 1924- ; Wrubel, Marshal H.; Wrubel, M. H.; Wrubel, Marshal Henry; Wrubel, Marshall Henry, Wrubel, Marshel Henry; usage: Marshal H. Wrubel; M.H. Wrubel)