"Maddala, G.S."@en . . . "1999-06-04Z"^^ . . "1933-05-21Z"^^ . "1933Z"^^ . "1999Z"^^ . . . "Gangadharrao Soundalyarao \"G. S.\" Maddala (May 21, 1933 \u2013 June 4, 1999) was an Indian American economist, mathematician, and teacher, known for his contributions in the field of econometrics and for the textbooks he authored in this field."@en . "American economist" . . . . "G. S. Maddala"@en . .