document.write('<b>Dallai, R., Fanciulli, P.P., Frati, F., Paccagnini, E. et Lupetti, P.</b> 2002. Sperm winding in Collembola., 6th International Seminar on Apterygota, Siena, Italy, 2002, Pedobiologia, 48, 2004, p.493-501. ');