TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.3.26 TI - Cracks in the Theory of Cracks JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 3 IS - SP - 26 EP - PY - 1999/05/12/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.3.26 A1 - Anonymous, ER -