TY - GEN AU - David,A AU - Kögel,G AU - Sperr,P AU - Triftshäuser,W TI - Lifetime measurements with a scanning positron microscope SN - 0031-9007 PY - 2001///0913 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.87.067402 ER -