Object recognition by invariants. - Predrag Pejnovic; Ljubomir J. Buturovic; Zoran Stojiljkovic (ICPR (2), 1992)

Classification of two-dimensional shapes based on moment invariants. - Predrag Pejnovic; Milan Markovic; Srdjan Stankovic (EUSIPCO, 2000)

Shape Classification by Moment and Autoregressive Invariants. - Predrag Pejnovic; Milan Markovic; Srdjan Stankovic (Int. J. Pattern Recognit. Artif. Intell., 2001)