{{Cite book| publisher = INED ; CEPED| pages = 77–98| editors = Philippe Antoine, Eva Lelièvre (eds.)| last1 = Desgrées du Loû| first1 = Annabel| last2 = Ferrand| first2 = Michèle| last3 = Brou| first3 = Hermann| last4 = Tijou Traoré| first4 = Annick| last5 = Bajos| first5 = Nathalie| title = Fuzzy states and complex trajectories : observation, modelization and interpretation of life histories| chapter = The many transitions around pregnancy| location = Paris| series = Méthodes et Savoirs| date = 2009}}