[1]V. Ulmanu, D. Zisopol, и C. Trifan, Experimental research concerning the influence of external diameteron the behavior of coiled tubing to cyclic bending with internal pressure, PMI, т. 170, вып. 2, сс. 46-48, апр. 2007.

[1]V. Ulmanu, D. Zisopol, and C. Trifan, “Experimental research concerning the influence of external diameter on the behavior of coiled tubing to cyclic bending with internal pressure”, PMI, vol. 170, no. 2, pp. 46-48, Apr. 2007.