P. Magnollay

New relativistic generalization of the Heisenberg commutation relations

Arno R Bohm, Piotr Kielanowski, A. Bohm, 1984 .

Relativistic rotator. I. Quantum observables and constrained Hamiltonian mechanics

Wolfgang Drechsler, Piotr Kielanowski, N. Mukunda, 1983 .