V. Kaila, V. K. Sood, H. K. Chaudhary, J. C. Bhandari, A. Sood, and R. K. Mittal, “Morphological and RAPD markers - mediated assessment of genetic diversity amongst various Trifolium species and identification of potential ideotypes for genetic upgradation of berseem under changed climate in mid-hills of north-west Himalayas”, IJGPB, vol. 69, no. 04, pp. 361–366, Nov. 2009.