@article{IJAMCS_2004_14_4_a7,
     author = {Mikulski, L.},
     title = {Control {Structure} in {Optimization} {Problems} of {Bar} {Systems}},
     journal = {International Journal of Applied Mathematics and Computer Science},
     pages = {515--529},
     year = {2004},
     volume = {14},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJAMCS_2004_14_4_a7/}
}