Hassani, H., & Arshdnzhad, S. (2007). Stability analysis of tunnels, trenches and Gvhhay entrance tunnel railway Qazvin - Rasht - Anzali 400 +47 km, using computer simulation and Astryvnt. Sharif Journal of Industrial Engineering & Management, Vol.23(No. 39), 31-39.

Hassani, H., & Arshdnzhad, S. "Stability analysis of tunnels, trenches and Gvhhay entrance tunnel railway Qazvin - Rasht - Anzali 400 +47 km, using computer simulation and Astryvnt", Sharif Journal of Industrial Engineering & Management, Vol.23, No. 39, 2007, 31-39.

Hassani H., Arshdnzhad S. (2007). 'Stability analysis of tunnels, trenches and Gvhhay entrance tunnel railway Qazvin - Rasht - Anzali 400 +47 km, using computer simulation and Astryvnt', Sharif Journal of Industrial Engineering & Management, Vol.23(No. 39), pp. 31-39.

H. Hassani & S. Arshdnzhad, "Stability analysis of tunnels, trenches and Gvhhay entrance tunnel railway Qazvin - Rasht - Anzali 400 +47 km, using computer simulation and Astryvnt," Sharif Journal of Industrial Engineering & Management, Vol.23 No. 39 (2007): 31-39,

Hassani H., Arshdnzhad S. Stability analysis of tunnels, trenches and Gvhhay entrance tunnel railway Qazvin - Rasht - Anzali 400 +47 km, using computer simulation and Astryvnt. SJIE. 2007;Vol.23(No. 39):31-39 (In Persian).