Das, S KMallick, B B2009-05-282009-05-281986-05-01Das SK, Mallick BB. Evolving of live modified sheep pox viral strains: modification of indigenous viral strains. Indian Journal of Experimental Biology. 1986 May; 24(5): 282-6http://imsear.searo.who.int/handle/123456789/61140engAnimalsPoxviridae --immunologyPoxviridae Infections --immunologySheepSheep Diseases --immunologyEvolving of live modified sheep pox viral strains: modification of indigenous viral strains.Journal Article