Effects of Tau and Sampling Frequency on the Regularity Analysis of ECG and EEG Signals Using ApEn and SampEn Entropy Estimators. - Ricardo Espinosa 001; Jesica Talero; Alejandro J. Weinstein (Entropy, 2020)

Two-Dimensional EspEn: A New Approach to Analyze Image Texture by Irregularity. - Ricardo Espinosa 001; Raquel Bailón; Pablo Laguna (Entropy, 2021)

EspEn Graph for the Spatial Analysis of Entropy in Images. - Ricardo Alonso Espinosa Medina 001 (Entropy, 2023)