Abercrombie, M.; Heaysman, J. E. (1953). "Observations on the social behaviour of cells in tissue culture. I. Speed of movement of chick heart fibroblasts in relation to their mutual contacts". Experimental Cell Research. 5 (1): 111–131. doi:10.1016/0014-4827(53)90098-6. PMID13083622.
Abercrombie, M.; Heaysman, J. E. (1953). "Observations on the social behaviour of cells in tissue culture. I. Speed of movement of chick heart fibroblasts in relation to their mutual contacts". Experimental Cell Research. 5 (1): 111–131. doi:10.1016/0014-4827(53)90098-6. PMID13083622.