Minimizing a monotone concave function with laminar covering constraints.

Mariko Sakashita Kazuhisa Makino Satoru Fujishige Minimizing a monotone concave function with laminar covering constraints. 2004-2019 2008 156 Discrete Applied Mathematics 11 http://dx.doi.org/10.1016/j.dam.2007.04.016 db/journals/dam/dam156.html#SakashitaMF08