@techreport{puchinger-07,
 address = {Vienna, Austria},
 author = {Jakob Puchinger and Günther R. Raidl and Ulrich Pferschy},
 institution = {Institute of Computer Graphics and Algorithms, Vienna University of Technology},
 keywords = {hybrid, mip, packing, vns},
 number = {TR 186--1--07--02},
 title = {The Multidimensional Knapsack Problem: Structure and Algorithms},
 url = {https://www.ac.tuwien.ac.at/files/pub/puchinger-07.pdf},
 year = {2007}
}