K. D.  Trimukhe and Varma, A., ?Complexation of heavy metals by crosslinked chitin and its deacetylated derivatives?, Carbohydrate Polymers, vol. 71, no. 1, pp. 66-73, 2008.

M. G.  Adsul, Terwadkar, A. P., Varma, A., and Gokhale, D. V., ?Cellulases from penicillium janthinellum mutants: solid-state production and their stability in ionic liquids?, Bioresources, vol. 4, no. 4, pp. 1670-1681, 2009.