He worked hard on topology problems which Wilder had given him and he made sufficient progress, despite working on his own, that by the end of the year he had written his first paper.
Ta töötas usinasti topoloogiast probleeme, mis Wilder andis talle ja ta teinud piisavalt edusamme, hoolimata tööpäeva omal, et aasta lõpuni ta oli kirjutanud oma esimese raamatu.