Influence of external magnetic field, finite-size effects and chemical potential on the phase transition of a complex scalar fieldE. Cavalcanti, E. Castro, C. A. Linhares and A. P. C. MalbouissonEur. Phys. J. C, 77 10 (2017) 711DOI: https://doi.org/10.1140/epjc/s10052-017-5301-z