Alireza Mojtabavi, Parastoo Farnia, Alireza Ahmadian, Meysam Alimohamadi, Ahmad Pourrashidi, Hamidreza Saligheh Rad, Javad Alirezaie: Segmentation of GBM in MRI images using an efficient speed function based on level set method. CISP-BMEI 2017: 1-6