Galanis, Evangelos, Zoran Stojković, Theodoros Proskinitopoulos, Emmanouil Tzormpatzakis, Nikos Comoutos, Yannis Theodorakis, and Antonis Hatzigeorgiadis. “A Psychophysiological Approach to the Study of Strategic Self-Talk Mechanisms through Heart Rate Variability During a Cycling Task”. Retos 70 (August 12, 2025): 1334–1342. Accessed November 7, 2026. https://www.revistaretos.org/index.php/retos/article/view/117042.