@article{article61533d01,
title   = {Constraint effects on reference temperature, to for ferritic steels in the transition region},
author = {Ruggieri, Claudio and Dodds Junior, R. H. and Wallin, K.},
year = {1998},
doi = {10.1016/s0013-7944(98)00001-0},
journal   = {Enginerring Fracture Mechanics}
}