by NAHM, WERNER
Published in International journal of modern physics. B, Condensed matter physics, statistical physics, applied physics (01.11.1994)

by LARSSON, T.A.
Published in International journal of modern physics. A, Particles and fields, gravitation, cosmology (20.10.1992)

by Bao, Dehai, Zhu, Zhong-yuan
Published in International journal of theoretical physics (01.01.1993)

by CASELLE, M., PONZANO, G., RAVANINI, F.
Published in International journal of modern physics. B, Condensed matter physics, statistical physics, applied physics (01.06.1992)

by KLEMM, ALBRECHT, THEISEN, STEFAN, SCHMIDT, MICHAEL G.
Published in International journal of modern physics. A, Particles and fields, gravitation, cosmology (10.10.1992)

by ASOREY, MANUEL, FALCETO, FERNANDO
Published in International journal of modern physics. A, Particles and fields, gravitation, cosmology (20.01.1992)

by AVAN, J.
Published in International journal of modern physics. A, Particles and fields, gravitation, cosmology (10.08.1992)

by MILLETT, KENNETH C.
Published in International journal of modern physics. B, Condensed matter physics, statistical physics, applied physics (01.06.1992)