List of Articles Z-numbers Open Access Article Abstract Page Full-Text 1 - A method for solving the Z-fractional differential equation With fuzzy confidence Parisa Keshavarz Farajollah Yaghoobi Ali Barahmand 10.30495/jnrm.2023.63717.2164 Open Access Article Abstract Page Full-Text 2 - A matrix method for estimating linear regression coefficients based on fuzzy numbers S. Ezadi T. allahviranllo Open Access Article Abstract Page Full-Text 3 - Z-Cognitive Map: An Integrated Cognitive Maps and Z-Numbers Approach under Cognitive Information Mostafa Izadi Rassoul Noorossana Hamidreza Izadbakhsh Saber Saati Mohammad Khalilzadeh 10.30495/jsm.2020.677237 Open Access Article Abstract Page Full-Text 4 - Investment portfolio optimization using value at risk under credibility theory with Z-numbers approach Amirsina Jirofti Amirabbas Najafi