Economic feasibility of summer squash cultivation using low tunnel and black plastic mulch under tarai condition of Uttarakhand Journal title: Journal of Applied and Natural Science Authors: Lalit Bhatt, S. K. Maurya, Dhirendra Singh Subject(s):
Optimization of Excavation Method for Shallow Buried Tunnel Under-passing Highway with Large Pipe Curtain Construction Journal title: 河南科技大学学报（自然科学版） Authors: Zhenhu YAN Subject(s):
