TY - JOUR AU - Mithu Saha AU - Babulal Das AU - Amarta Kumar Pal TI - Synthesis of pyran derivatives under ultrasound irradiation using Ni nanoparticles as reusable catalysts in aqueous medium JO - Comptes Rendus. Chimie PY - 2013 SP - 1079 EP - 1085 VL - 16 IS - 12 PB - Elsevier DO - 10.1016/j.crci.2013.05.012 LA - en ID - CRCHIM_2013__16_12_1079_0 ER -