@article{ZNSL_2013_411_a6,
     author = {I. A. Krepkiy},
     title = {Sandpile groups and the join of graphs},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {119--124},
     publisher = {mathdoc},
     volume = {411},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2013_411_a6/}
}