Grafen, A., & Ridley, M. (1997). A new model for discrete character evolution.
Chicago-čujuhus (17. p.)Grafen, A., juo M. Ridley. A New Model for Discrete Character Evolution. 1997.
MLA-čujuhus (9. p.)Grafen, A., juo M. Ridley. A New Model for Discrete Character Evolution. 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.