@article{PDMA_2018_11_a29,
     author = {I. N. Manashev},
     title = {Breaking {Google} {reCAPTCHA~v2}},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {99--101},
     publisher = {mathdoc},
     number = {11},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2018_11_a29/}
}