Javadi, A., Ahangar-Asr, A., Johari, A., Faramarzi, A., & Toll, D. (2012). Modelling stress-strain and volume change behaviour of unsaturated soils using an evolutionary based data mining technique, an incremental approach. Engineering Applications of Artificial Intelligence, 25(5), 926-933. https://doi.org/10.1016/j.engappai.2012.03.006