1.
Vandyshev D, Kulemin A, Nachalov D. Identification of Information System Functional Problems Using the Model of Requirements and Cause-effect Relationships. KEG [Internet]. 2020Apr.8 [cited 2020Jul.11];5(3):127–134. Available from: https://knepublishing.com/index.php/KnE-Engineering/article/view/6770