found: His Introducción a la topología general, 1981, c1969:t.p. (Juan Horváth)
found: LC data base, 6/6/83(hdg.: Horváth, John, 1924- )
found: A panorama of Hungarian mathematics in the twentieth century, c2006-:v.1 t.p. (János Horváth) v.1 t.p. verso (Dept. of Mathematics, Univ. of Maryland)
found: Amer. men & women of sci., 18th ed., 1992-1993(John Michael Horvath, born 30 July 1924, Budapest, Hungary; formerly prof. of mathematics, Univ. of the Andes; since 1963, prof. of maths at Univ. of Maryland)
found: University of Maryland, Dept. of Mathematics, retired and emeritus faculty, Apr. 29, 2010(Horvath, John; prof emeritus)
found: The chronicle of higher education, April 17, 2015:page A37 (John Horvath; d. Mar. 12, 2015, Takoma Park, Md.; professor emeritus of mathematics, University of Maryland at College Park)