Landau-Ginzburg method applied to finite fermion systems: Pairing in nuclei M. K. G. Kruse, H. G. Miller, A. R. Plastino, A. Plastino and S. Fujita Eur. Phys. J. A, 25 3 (2005) 339-344 Published online: 27 September 2005 DOI: 10.1140/epja/i2005-10133-0