1) Abu-Lebdeh, T.M. and Voyiadjis, G.Z. : Plasticity-damage model for concrete under cyclic multiaxial loading, J. Eng. Mech., ASCE, Vol. 119, No. 7, pp. 1465-1484, 1993
2) Balmer, G.G. : Shearing strength of concrete under high triaxial stress-computation of Mohr's envelope as a curve, Struct. Res. Lab. Rep. SP 23, Demver, Colo, Oct., 1949
3) Bazant, Z.P. and Kim, S.S. : Plastic-fracturing theory for concrete, J. Eng. Mech., ASCE, Vol. 105, No. EM 3, pp. 407-428, 1979
4) Bazant, Z.P. and Prat, P.C. : Microplane model for brittle-plastic material, -Theory & Verification -J. Eng. Mech., ASCE, Vol. 114, No. 10, pp. 1672-1702, 1988
5) de Borst, R. and Muhlhaus, H.-B. : Continuum models for discontinuous media, fracture processes in concrete, rock and ceramics, Vol. 2, E & FN Spon, pp. 601-618, 1991