Investigation of urea usage in soda pulping of Populus deltoides Authors Ehsan Yousefi Gorgan University of Agriculture Sciences and Technology, Iran Mohammadreza Dehghani Firoozabadi Gorgan University of Agriculture Sciences and Technology, Iran Omid Ghaffarzadeh University of Mohaghegh Ardabili, Iran Tehran University, Iran Kuňa Vladimír Pulp and Paper Research Institute, Bratislava, Slovak Republic Post Views: 57
