Detlef Laugwitz

Θ-Calculus as a generalization of field extension an alternative approach to nonstandard analysis

D. Laugwitz, Detlef Laugwitz, 1983 .

ON THE HISTORICAL DEVELOPMENT OF INFINITESIMAL MATHEMATICS

Detlef Laugwitz, 1997 .

Infinitely small quantities in Cauchy's textbooks

Detlef Laugwitz, 1987 .

A simple characterization of the gamma function

Detlef Laugwitz, Bernd Rodewald, 1987 .