Musielak, Dora. Sophie's diary, c2005: t.p. (Dora Musielak) about the author ( Dora Elia González y Musielak; teaches science and mathematics courses at the University of Texas at Arlington)

Wikipedia, March 14, 2023: (Dora Elia Musielak is an aerospace engineer, historian of mathematics, and book author; expert on high-speed airbreathing jet engines and an adjunct professor of mechanical and aerospace engineering at the University of Texas at Arlington; Ph.D. from the University of Alabama in Huntsville; worked for Northrup Grumman, MSE Technology Applications, and ATK Allied Techsystems; written several books on mathematician Sophie Germain) https://en.wikipedia.org/wiki/Dora%5FMusielak