Meta-chronoanalysis revels circadian-to-ultradian shift in drosophila multant and altered circadian structure after gene transfer - Marques, Nélson; Cornelissen, G; Halberg, F; Binghan, C; Sanches de la Pena, S; Marques, Mirian David; Hurwitz, A; Hamblen, M; Hall, J (Chronobiologia, 1987)