Олександр Ковальчук
Observed name: Ковальчук, Олександр Іванович
Institution: Uman National University
Observed institutions: Lviv University, Uman National University
ORCID: 0009-0002-4296-1363
Observed ORCID: 0009-0002-4296-1363
OpenAlex ID: A5116876430
