BibTex format
@article{MARSHALL:1973:10.1007/BF00756625,
author = {MARSHALL, GP and WILLIAMS, JG and TURNER, CE},
doi = {10.1007/BF00756625},
journal = {JOURNAL OF MATERIALS SCIENCE},
pages = {949--956},
title = {FRACTURE TOUGHNESS AND ABSORBED ENERGY MEASUREMENTS IN IMPACT TESTS ON BRITTLE MATERIALS},
url = {http://dx.doi.org/10.1007/BF00756625},
volume = {8},
year = {1973}
}