Method for estimation of pre-sowing soil moisture of winter wheat and suitable planting dates. Bulgarian Journal of Soil Science, Agrochemistry and Ecology, [S. l.], v. 55, n. 2, p. 47–59, 2021. Disponível em: https://agriacad.eu/ojs/index.php/bjssae/article/view/1618.. Acesso em: 10 feb. 2026.