It became almost inaccessible and, although reviewed in the Fortschritte and the Zentralblatt, remained unknown, for example to a group of recent Russian writers who rediscovered some its results.
Ito ay naging halos hindi maa-access at, bagaman susuriin sa Fortschritte at ang Zentralblatt, naiiwan ang hindi kilala, halimbawa sa isang grupo ng mga kamakailan-lamang na Russian writers na muling natuklasan, ang ilang mga resulta nito.