@article{SJC_2012_6_2_a4,
     author = {Semerdjieva, Maria and Krastev, Evgeniy},
     title = {BPMN {Analysis} of {Public} {Procurement}},
     journal = {Serdica Journal of Computing},
     pages = {195--206},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SJC_2012_6_2_a4/}
}