@base . "Bulgaria" . . a , ; "Texts in Biomathematics (Online)" . a . a ; . a ; "2603-3038" ; . a ; "20230525093417.043684"^^ ; ; . , ; "Texts in Biomathematics." ; ; ; ; ; ; ; "Texts in Biomathematics (Online)" , "Texts in Biomathematics." ; ; "http://www.biomathforum.org/biomath/index.php/texts/index" .