@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20161108-142119224, title = "Fracture, Fatigue, Failure and Damage Evolution", chapter = "Investigating the Effective Fracture Toughness of Heterogeneous Materials", url = "https://resolver.caltech.edu/CaltechAUTHORS:20161108-142119224", id = "record", isbn = "978-3-319-42194-0", doi = "10.1007/978-3-319-42195-7\_3" } @inbook{https://resolver.caltech.edu/CaltechAUTHORS:20160211-094810104, title = "Fracture, Fatigue, Failure and Damage Evolution", chapter = "Measuring the Effective Fracture Toughness of Heterogeneous Materials", url = "https://resolver.caltech.edu/CaltechAUTHORS:20160211-094810104", id = "record", isbn = "978-3-319-21610-2", doi = "10.1007/978-3-319-21611-9\_19" }