INDEX OF A POINT OF 3-D DIGITAL BINARY IMAGE AND ALGORITHM FOR COMPUTING ITS EULER CHARACTERISTIC Статья Bykov A.I., Zerkalov L.G., Rodríguez Pineda M.A. Pattern Recognition. Elsevier Science Ltd, United Kingdom. Том 32. 1999. С. 845-850
NEW CONNECTED COMPONENTS ALGORITHMS AND INVARIANT TRANSFORMATIONS OF DIGITAL IMAGES Статья Bykov A.I., Zerkalov L.G., Albores Velasco F.J., Rodríguez Pineda M.A. Pattern Recognition. Elsevier Science Ltd, United Kingdom. Том 31. 1998. С. 1089-1098
ALGORITHMS FOR HOMOTOPY CLASSIFICATION OF BINARY IMAGES Статья Bykov A.I., Zerkalov L.G. Pattern Recognition. Elsevier Science Ltd, United Kingdom. Том 29. 1996. С. 565-574