@inbook{ GALLEGO:503-546,

author = { RAFAEL GALLEGO SEVILLA } ,

title = { DYNAMICS FRACTURE MECHANICS },

booktitle = { BOUNDARY ELEMENTS IN DYNAMICS },

isbn = { 1-85312-258-0 },

publisher = { COMPUTACIONAL MECHANICS PUBLICATIONS-Elsevier },

pages = { 503 - 546 },

year = { 1993 },

}