Tungatarova S.A., Zheksenbaeva Z.T., Baizhumanova T.S., Zhumabek M., Sarsenova R.O., Kaumenova G., Massalimova B., Shorayeva K.A., 2018, Selective Polyoxide Catalysts for Synthesis of Ethylene from Natural Gas , Chemical Engineering Transactions, 70, 1927-1932.