Chaos control using second order derivatives of universal learning network. - Masaru Koga; Kotaro Hirasawa; Junichi Murata; Masanao Ohbayashi (ICNN, 1995)

Forward propagation universal learning network. - Kotaro Hirasawa; Masanao Ohbayashi; Masaru Koga; Masaaki Harada (ICNN, 1996)

Challenge of aster digital elevation model. - Akira Iwasaki; Masaru Koga; Hiroto Kanno; Naoto Yokoya; Tetsuya Okuda; Kojiro Saito (IGARSS, 2010)

Improving the Measurement Accuracy of Three-Dimensional Topography Changes Using Optical Satellite Stereo Image Data. - Masaru Koga; Akira Iwasaki (IEEE Trans. Geosci. Remote. Sens., 2011)