List of Articles Regression Models Open Access Article Abstract Page Full-Text 1 - Investigation of Height-Diameter Models in Different Development Stages of Unmanaged Beech Forest(Case Study: Educational and research forest of Kheirud) Vahid Alijani Manouchehr Namiranian Jahangir Feghhi Omid Bozorg-Haddad Vahid Etemad 10.22034/jest.2020.11182 Open Access Article Abstract Page Full-Text 2 - Determination of cardinal temperatures of germination in three species of pigweed (Amaranthus sp.) Elahe Pirouzmand Ebrahi Izedi Darbandi mehdi nassiri mahallati Reza Tavakol Afshari Open Access Article Abstract Page Full-Text 3 - Investigating the Threshold Impact of Country Risk Index on the Impact of Public Debt on Economic Growth: Panel Smooth Transition Regression (PSTR) Approach javad harati Nesa Kamalian elham bita