Rao, Kuchibhotla Mallikarjuna. Development of a versatile, 20-node hexahedral finite element, PN6X1, using papcovitch-neuber potentials by Kuchibhotla Mallikarjuna Rao - Bangalore IISc. 2000 - xxi, 187p. (IISc., Dept. of ME., Ph.D Thesis) Dewey Class. No.: 620.00151535 / P "THESIS"