List of Articles Guilan Open Access Article Abstract Page Full-Text 1 - Spatial patterns of trees and height story competition over forest developmental stages in the mixed stands of Guilan Maryam Kazempour Larsary Kambiz Taheri Abkenar Reza Akhavan Hassan pourbabaei 10.29252/.5.8.1 Open Access Article Abstract Page Full-Text 2 - Investigation of Loss of Extracted Wood, Biomass and Carbon Storage of Commercial Trunk of Hornbeam and Date-plum Species in Astara Forests Seyede Nasrin Ghaznavi Open Access Article Abstract Page Full-Text 3 - Identifying and Prioritizing the Influencing Factors on the Development of Incubators of University Technology Units (Case Study: Incubator of Technology Units in Guilan University) Roozbeh Habibi Zahra Asghari Kamran Jafari 10.7508/jstpi.2018.04.001 Open Access Article Abstract Page Full-Text 4 - Developing a model for the growth stages of knowledge-based companies Ghasem Ramezanpour Nargesi Negin Fallah Haghighi Zeinab Sharifi Open Access Article Abstract Page Full-Text 5 - Investigation and identification of waste in industrial zone of Guilan province (Case study: Plastic and synthetic rubber industries) Zahra Zamiraei sadaf feyzi Mohammad panahandeh Open Access Article Abstract Page Full-Text 6 - Analysis of factors affecting the development of tourism demand based on ecotourism in rural areas of Guilan Farhad Javan Naimabadi Nazanin