A Choice of the Shortest of the Alternative Compressed Blocks of the Dynamic Huffman's codes in the Format of PNG. - Alexander Shportko (Int. J. Comput., 2009)

An Analysis of Images before Compression in PNG Format. - Alexander Shportko (Int. J. Comput., 2010)

The Acceleration of the Determination of the Median of Nested Subarrays Using Two Binary Pyramids. - Alexander Shportko; Veronika Shportko (COLINS, 2020)

The Use of a Fixed Height Binary Tree to Accelerate the Determination of the Medians of Subarrays. - Oleksandr Shportko; Lesya Shportko (CSIT (2), 2020)

Development of Predictors to Increase the Efficiency of Progressive Hierarchic Context-Independent Compression of Images Without Losses. - Alexander Shportko; Veronika Postolatii (COLINS, 2021)

Rejection of the Inefficient Replacements while Forming the Schedule of the Modified Algorithm LZ77 in the Process of Progressive Hierarchical Compression of Images without Losses. - Alexander Shportko; Andriy Bomba; Veronika Postolatii (COLINS, 2022)

Programming the Formation of Difference Color Models for Lossless Image Compression. - Alexander Shportko; Andrii Bomba; Veronika Postolatii (COLINS (3), 2023)

Redistribution of the Compressed Data Between Modified DEFLATE-Blocks in the Image Compression Process Without Lossless. - Andrii Bomba; Alexander Shportko; Veronika Postolatii (COLINS (2), 2024)