@article {TaskinEtAl2012, title = {Mixed-Integer Programming Techniques for Decomposing IMRT Fluence Maps Using Rectangular Apertures}, journal = {Annals of Operations Research}, volume = {196(1)}, year = {2012}, pages = {799-818}, doi = {http://dx.doi.org/10.1007/s10479-010-0767-1}, author = {Z C Ta{\c s}k{\i}n and J. Cole Smith and H. Edwin Romeijn} }