@article{YJOR_2006_16_2_a1,
     author = {Boban Marinkovi\'c},
     title = {First and {Second} {Order} {Necessary} {Optimality} {Conditions} for {Discrete} {Optimal} {Control} {Problems}},
     journal = {Yugoslav journal of operations research},
     pages = {153 },
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2006_16_2_a1/}
}