TY - RPRT TI - A defect produced in low power electron micrographs by thin-foil objective apertures. AU - J Rostgaard PY - 1974 DO - 10.1111/j.1365-2818.1974.tb03954.x UR - https://pubmed.ncbi.nlm.nih.gov/4479856/ ID - 4479856 ER -