@article {Simula.sc.918,
	title = {Two-Parameter Fracture Mechanics and Circumferential Crack Growth in Surface Cracked Pipelines Using Line-Spring Elements},
	journal = {Engineering Fracture Mechanics},
	volume = {75},
	number = {1},
	year = {2008},
	month = {January},
	pages = {17-30},
	publisher = {Elsevier},
	doi = {10.1016/j.engfracmech.2007.03.023},
	author = {Berg, E. and Bj{\o}rn H. {Skallerud} and Thaulow, Christian}
}
