Algorithm for adaptive observation based on method of instrumental variablesNikola Nikolov, Mariela Alexandrova, Shakhnoza Ubaydullayeva, Rano Gaziyeva, Khafizova Zulfiya and Dilorom UbaydullayevaE3S Web of Conf., 401 (2023) 04003DOI: https://doi.org/10.1051/e3sconf/202340104003