00584naa#a2200169#i#4500001001400000005001700014100004100031102000700072200008300079210010500162215001000267608003700277675002900314700002500343700002300368856002300391EN\\bibl\439020250110184537.5##a20201207b2020####ek#y0engy0150####ca##aRU1#aNonstrict methods for a posteriori error estimationeConference article/thesis1#aNizhny NovgorodcANO "Scientific and Research Center for Information in Physics and Technique"d2020##a4 с.##aConference article/thesis2local##aМатематика. 51#1aBondarevgAleksandr #1aAlekseevgAleksey 4#asrcipt.editorum.ru