@article{PDMA_2012_5_a29,
     author = {G. O. Chikishev},
     title = {One-time ring signature in e-cash},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {56--58},
     year = {2012},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2012_5_a29/}
}