Application of Wavelet Characteristics and GMDH Neural Networks for Precise Estimation of Oil Product Types and Volume Fractions oleh Abdulilah Mohammad Mayet, Seyed Mehdi Alizadeh, Karwan Mohammad Hamakarim, Ali Awadh Al-Qahtani, Abdullah K. Alanazi, John William Grimaldo Guerrero, Hala H. Alhashim, Ehsan Eftekhari-Zadeh