Wagner, E., Bonzon, M., Normann, J., Albrechtová, J., Macháčková, I., Greppin, H. - Greppin, H., ed., Degli, R., ed., Bonzon, M., ed. Signal transduction and metabolic control of tining in photoperiodism the case of flower initiation. Geneve: University of Geneva, 1996. In: Vistas on Biorhythmicity. , s. 3-23.