%0 GKSS report %@ 8756-758X %A Zerbst, U., Heerens, J., Pfuff, M., Wittkowsky, B. U., Schwalbe, K.-H. %D 1998 %J Fatigue and Fracture of Engineering Materials and Structures %N 10 %P 1273-1278 %T Engineering estimation of the lower bound toughness in the transition regime of ferritic steels %U 10 %X