1. Borojević, S., 1958. Osiguranje optimalnog broja biliaka kod pšenice. Polj. Vojvodine 1, Novi Sad.
2. Borojević, S., T. Miši∁ & M. Janković, 1961. (On determining the optimum number of heads and production per head in the main types of Italian wheat varieties). Savremena poljoprivreda 12: 1105–1207, Novi Sad.
3. Darwinkel, A., 1978. Patterns of tillering and grain production of winter wheat at a wide range of plant densities. Neth. J. Agric. Sci. 26: 283–398.
4. Donald, C. M., 1968a. The breeding of crop ideotypes. Euphytica 17: 385–403.
5. Donald, C. M., 1968b. The design of a wheat ideotype. Third Int. Wheat Genetics Symp., Canberra, Australia: 377–387.