1. Suboptimal foraging strategies for a patchy environment;Breck,1978
2. Optimal foraging, the marginal value theorem;Charnov;Theor. Pop. Biol,1976
3. Ecological implications of resource depression;Charnov;Am. Nat,1976
4. Foraging behaviour of the great tit (Parus major) in a patchy environment;Cowie,1979
5. Optimal foraging in patchy environments;Cowie,1979