1. Veisberg E. I., Isakova N. Addition to the flora of charophytes and xanthophytes (Charales, Vaucheriales) of the Chelyabinsk Region (South Ural, Russia) // Turczaninowia, 2018. Vol. 21. № 2. P. 47-54. URL: http://turczaninowia.asu.ru/article/view/4188.