Returning to Argentina after her studies abroad, Habichayn was hired to teach sociology at the
National University of Rosario, but was fired because of her political left-leaning ideas and unable to work in university settings from the
Onganía to the
Videla presidencies. She taught at a secondary school in
Rosario, Santa Fe from 1968 until 1984. She was one of the founding members of the (ARES, Rosarian Association of Sexual Education), organized by
Ana María Zeno in 1976. This was the first organization in Argentina to train professionals on contraception, sexuality, and sex education. When the
dictatorship fell, she returned to the university. In 1989, Habichayn founded the (Center for Historical Studies on Women) at the National University of Rosario, which was renamed as the (CEIM, Center for Interdisciplinary Studies on Women) in 1991. The academics associated with the center were feminist activists who wanted to address the inequalities between men and women and the lack of research on women and restrictive social hierarchies. These included academics such as Habichayn's husband, Héctor Bonaparte, Nidia Areces, Marta Bonaudo, María Inés Carzolio, Gabriela D'alla Corte, Elida Sonzoni, María Cecilia Stroppa, who held Friday meetings to discuss projects and coordinate activities. Initially they focused on filling the gaps of women's historic participation in society, but quickly began to move to a wider scope focusing on women's and gender issues across academic disciplines. At the time,
women's studies were not widely accepted as an academic field, and Habichayn had to press the administration for
accreditation.
Mónica Tarducci, a colleague and anthropologist, noted that convincing the (CoNEAU, National Commission for University Evaluation and Accreditation) was an arduous process and took Habichayn over three years. Finally in 1993, she secured approval for the first master's degree program in women's studies in
Latin America. Students who enrolled in the program were taught by academics like
Ana Amado,
Nora Domínguez,
Catalina Wainerman, and others, from various universities. The previous year, she also founded and became editor-in-chief of the journal
Zona Franca (
Free Zone), which served as the publishing medium for academics of CEIM. Habachayn was one of the founders of the (CENUR, Center for New Roles), a feminist space and publishing house in 1997. Although Habichayn published many articles and book chapters, her most known work was (2005,
Embers under the Ashes: The Thousand and One Forms of Exclusion and Confinement of Women). The book was an evaluation of the changing landscape for women and feminism through time in Argentina. Among the themes explored were family violence, health and maternity, sexuality and prostitution and the socio-cultural constructs of how policies dealing with these issues changed over time. In 2006, the
Deliberative Council of Rosario honored her as a pioneer in gender studies on
International Women's Day. She retired the following year as manager of CEIM and editor-in-chief of
Zona Franca. ==Death and legacy==