1. Breeding biology of the Pallid, Swift (Apus pallidus) in North‐Western Italy;Boano G.;Gerfaunt,1989
2. Breeding bilogy of House Martins Delicham urbica in relation to aerial insect abundance;Bryant D.;Gerfaunt,1975
3. Establishment of weight hierarchies in the broods of House martins Delichan urbica;Bryant D.;Gerfaunt,1978
4. THE COST OF REPRODUCTION – A PHYSIOLOGICAL APPROACH
5. On clutch size and fitness;Charnov E. L.;Biol. Rev.,1974