00732naa#a2200193#i#450# EN\\bibl\63935 20240429045548.1 2686-9896 20230504b2023####ek#y0engy0150####ca RU USE OF MODIFIED TECHNICAL LIGNINS IN DRILLING TECHNOLOGY Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2023 1 с. Journal article local Целлюлозно-бумажная промышленность. 676 Scherbin Sergey Anatol'evich Evdokimenko Dmitriy Sergeevich Borisov Alexandr Vladimirovich angtu.editorum.ru