Kersulyte, G., Z. Navickas, A. Vainoras, L. Gargasas, and G. Jarusevicius. 2008. “Analysis of Cardiosignals Cohesion Based on Hankel Matrix”. Elektronika Ir Elektrotechnika 88 (8): 55-58. https://doi.org/10.5755/j02.eie.11234.