%0 Journal Article %T BREACHES IN UNILATERAL TERMINATION OF AN OBLIGATION: CONSEQUENCES AND POSSIBILITIES OF CONVALIDATION %A Grigorev, O.I. %K contract, unilateral refusal, performance of obligations, payment, secondary right, juridical fact, termination, termination of legal relationship, estoppel %J Advances in Law Studies %D 2026 %N 14 %P 4 %I Publishing Center RIOR