A Fast and Accurate Faces Localization using Gradient Method. - Georgy Kukharev; Pawel Masicz; Piotr Masicz (WSCG (Short Papers), 2004)

Modified Gradient Method for Face Localization. - Georgy Kukharev; Pawel Masicz; Piotr Masicz (Enhanced Methods in Computer Security, Biometric and Artificial Intelligence Systems, 2005)