"Lightstone, AH"@en . "Canadian mathematician" . "1926Z"^^ . "Albert Harold Lightstone (1926\u20131976) was a Canadian mathematician. He was one of the pioneers of non-standard analysis, a doctoral student of Abraham Robinson, and later a co-author with Robinson of the book Nonarchimedean Fields and Asymptotic Expansions."@en . "1976Z"^^ .