TY - JOUR AU - Seyed Meysam Baghbanian AU - Yaser Babajani AU - Hamed Tashakorian AU - Samad Khaksar AU - Maryam Farhang TI - p-sulfonic acid calix[4]arene: An efficient reusable organocatalyst for the synthesis of bis(indolyl)methanes derivatives in water and under solvent-free conditions JO - Comptes Rendus. Chimie PY - 2013 SP - 129 EP - 134 VL - 16 IS - 2 PB - Elsevier DO - 10.1016/j.crci.2012.10.014 LA - en ID - CRCHIM_2013__16_2_129_0 ER -