Castel, J. M., Madry, W., Gozdowski, D., Roszkowska-Madra, B., Dabrowski, M., Lupa, W., & Mena, Y. (1). Family dairy farms in the Podlasie province, Poland: farm typology according to farming system. Spanish Journal of Agricultural Research, 8(4), 946-961. https://doi.org/10.5424/sjar/2010084-1390