%0 Journal Article
%A Zeba N. Siddiqui
%A Saima Tarannum
%T Xanthan sulfuric acid: An efficient and biodegradable solid acid catalyst for the synthesis of bis(indolyl)methanes under solvent-free conditions
%J Comptes Rendus. Chimie
%D 2013
%P 829-837
%V 16
%N 9
%I Elsevier
%R 10.1016/j.crci.2013.04.013
%G en
%F CRCHIM_2013__16_9_829_0