A self-adaptive biogeography-based algorithm to solve the set covering problem Broderick Crawford, Ricardo Soto, Rodrigo Olivares, Luis Riquelme, Gino Astorga, Franklin Johnson, Enrique Cortés, Carlos Castro and Fernando Paredes RAIRO-Oper. Res., 53 3 (2019) 1033-1059 Published online: 24 July 2019 DOI: 10.1051/ro/2019039