| 1. | Production and Costs of motor-manual tree felling in Hyrcanian forest | |
| Volume 65, Issue 3, October 2013, Pages 285-297 | ||
| x x; x x; x x | ||
| 1. | Production and Costs of motor-manual tree felling in Hyrcanian forest | |
| Volume 65, Issue 3, October 2013, Pages 285-297 | ||
| x x; x x; x x | ||