The 1901 book "Sind es Frauen? Roman über das dritte Geschlecht" (English: "Are These Women? Novel about the Third Sex") by Aimée Duc was as much a political treatise as a novel, criticising pathological theories of homosexuality and gender inversion in women. Anna Rüling, delivering a public speech in 1904 at the request of Hirschfeld, became the first female Uranian activist. Rüling, who also saw "men, women, and homosexuals" as three distinct genders, called for an alliance between the women's and sexual reform movements, but this speech is her only known contribution to the cause. Women only began to join the previously male-dominated sexual reform movement around 1910 when the German government tried to expand Paragraph 175 to outlaw sex between women. Heterosexual feminist leader Helene Stöcker became a prominent figure in the movement. Friedrich Radszuweit published LGBT literature and magazines in Berlin (e.g., "Die Freundin").