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Bhat, V and Ganguli, A K and Nandundaswamy, KS and Ram, Mohan RA and Gopalkrishnan, J and Rao, CNR (1987) Approaches to the synthesis of High-$T_c$ superconducting oxides in La-Ba-Cu-O and Y-Ba-Cu-O systems. In: Phase Transitions, 10 (1-2). pp. 87-95.
Gopalkrishnan, J and Ramanan, A and Rao, CNR and Jefferson, DA and Smith, DJ (1984) A homologous series of recurrent intergrowth structures of the type Bi4Am + n 2Bm + nO3(m + n) + 6 formed by oxides of the aurivillius family. In: Journal of Solid State Chemistry, 55 (1). pp. 101-105.