Detlef Laugwitz is mainly known for his by-now-standard biography of Riemann:
- Detlef Laugwitz, Bernhard Riemann 1826-1866 : Turning Points in the Conception of Mathematics (1996 - German ed.1996)
as noted in this answer. He has written on Cauchy, as for example this text:
Laugwitz, Detlef. Infinitely small quantities in Cauchy's textbooks. Historia Math. 14 (1987), no. 3, 258–274.
How is Laugwitz's work on Cauchy viewed by historians today and why? I am interested in the historians' own position on the matter (rather than the opinions of SE editors).