R. S. BOMBATKAR, C. H. PAWSHE, M. S. CHAUHAN, and P. B. RAUT, “Immature buffalo (Bubalus bubalis) oocytes vitrification: Effect of ethylene glycol concentrations on survivability and nuclear maturation”, Indian J of Anim Sci, vol. 80, no. 7, pp. 39–43, July 2010, doi: 10.56093/ijans.v80i7.309.