Hinde, R. A.

1952. The behaviour of the Great Tit (Parus major) and some other related species. Leiden: E. J. Brill, x + 201 pp.

1956. The biological significance of the territories of birds, Ibis, 98:340-369.

Hinde, R. A., and Tinbergen, N.

1958. The comparative study of species-specific behavior. In Behavior and Evolution (Yale University Press, New Haven), pp. 251-268.

Kluijver, H. N.

1951. The population ecology of the great tit, Parus m. major L. Ardea, 39:1-135.

Lack, D.

1947. The significance of clutch-size. Ibis, 89:302-352.