فهرس المقالات Sr2Nb2O7 حرية الوصول المقاله صفحة الملخص نص كامل 1 - Low temperature hydrothermal synthesis, evaluation of band gap energies and catalytic performance for Biginelli reactions of Sr2-xAxNb2O7+δ (A=Eu3+ and Nd3+) (x = 0.01 and 0.05) nanomaterials shahin khademinia mahdi behzad 10.22034/jna.2018.557281.1062 حرية الوصول المقاله صفحة الملخص نص كامل 2 - Low temperature hydrothermal synthesis, evaluation of band gap energies and catalytic performance for Biginelli reactions of Sr2-xAxNb2O7+δ (A=Eu3+ and Nd3+) (x = 0.01 and 0.05) nanomaterials shahin khademinia Mahdi Behzad 10.22034/jna.2018.541851