Comparison of lattice gauge theories with gauge groups Z 2 and SU(2) Mack, G. Petkova, V. B. 1978 - DESY EPflicht - frei zugänglich
Sufficient condition for confinement of static quarks by a vortex condensation mechanism Mack, G. Petkova, V. B. 1978 - DESY EPflicht - frei zugänglich