1. Ulmanu , V., Zisopol , D., Trifan , C.: Experimental research concerning the influence of external diameteron the behavior of coiled tubing to cyclic bending with internal pressure. Записки Горного института. 170, 46-48 (2007)

1. Ulmanu , V., Zisopol , D., Trifan , C.: Experimental research concerning the influence of external diameter on the behavior of coiled tubing to cyclic bending with internal pressure. Journal of Mining Institute. 170, 46-48 (2007)