TY - JOUR AU - Fernández-Rañada, Antonio PY - 1984 DO - 10.1103/PhysRevD.29.985 SN - 0556-2821 UR - https://hdl.handle.net/20.500.14352/64900 T2 - Physical Review D AB - We investigate the effect of spin-dependent forces in a recently proposed approach to the problem of extended particles with structure. The forces are introduced by means of two different fourthorder interactions of Fermi type, a vector coupling and a... LA - eng M2 - 985 PB - American Physical Society TI - Nonlinear model of c-number confined Dirac quarks TY - journal article VL - 29 ER -