Charlotte Salome Veronika Transvestiten

A German-language book on transvestites in West Germany at the end of the 1970s, illustrated with black-and-white photographs. The title uses three first names, Charlotte, Salome and Veronika, which suggests the book is organised around individual people. The sources I could check do not say who those three are or how the book is structured. They also do not say whether the photographs or the text carry more of the book, or who took the pictures. It is credited to two authors, Susann Hillebrand and Irmgard Johannson, and was first issued in softcover by Rogner & Bernhard in Munich in 1978.