TY - RPRT TI - Genetic programming over context-free languages with linear constraints for the knapsack problem: first results. AU - Peter Bruhn AU - Andreas Geyer-Schulz PY - 2002 DO - 10.1162/106365602317301772 UR - https://pubmed.ncbi.nlm.nih.gov/11928691/ ID - 11928691 ER -