Strip clay application accelerates for 15–20 years the vegetation formation in ash dump (Middle Urals, Russia)Natalia Lukina, Tamara Chibrik, Elena Filimonova, Margarita Glazyrina, Evgeniy Rakov and Denis VeselkinBIO Web Conf., 31 (2021) 00016DOI: https://doi.org/10.1051/bioconf/20213100016