@article{SJC_2017_11_3-4_a0,
     author = {Stefanov, Krassen},
     title = {Preface},
     journal = {Serdica Journal of Computing},
     pages = {001--003},
     publisher = {mathdoc},
     volume = {11},
     number = {3-4},
     year = {2017},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/SJC_2017_11_3-4_a0/}
}