Susmita Ghosh Swarnajyoti Patra Ashish Ghosh A Neural Approach to Unsupervised Change Detection of Remote-Sensing Images. 243-268 2008 Speech, Audio, Image and Biomedical Signal Processing using Neural Networks http://dx.doi.org/10.1007/978-3-540-75398-8_11 series/sci/2008-83 db/series/sci/sci83.html#GhoshPG08