Finite-size, chemical-potential and magnetic effects on the phase transition in a four-fermion interacting modelE. B. S. Corrêa, C. A. Linhares, A. P. C. Malbouisson, J. M. C. Malbouisson and A. E. SantanaEur. Phys. J. C, 77 4 (2017) 261DOI: https://doi.org/10.1140/epjc/s10052-017-4815-8