TY  - BOOK
AU  - Karapetyants, Alexey N.
AU  - Ramírez de Arellano, E., coaut.
TI  - the inversion of potential type operators with kernels havi-ng singularities on a sphere / by Alexey N. Karapetyants an-d E. Ramírez de Arellano
CY  - México : tamento de Matemáticas
ER  -