Brevik, E. C., A. Baumgarten, C. Calzolari, A. Jordán, C. Kabala, B.A. Miller, and P. Pereira, 2015: Historical perspectives and future needs in soil mapping, classification, and pedologic modeling.

Brevik, E. C., A. Baumgarten, C. Calzolari, A. Jordán, C. Kabala, B.A. Miller, and P. Pereira, 2016: Editorial: Historical perspectives and future needs in soil mapping, classification, and pedologic modeling. Geoderma, 264, 253-255. doi: 10.1016/j.geoderma.2015.09.022.