TY - RPRT TI - Bidirectional shadowing in freeze-etching. AU - J H Willison AU - R D Moir PY - 1983 DO - 10.1111/j.1365-2818.1983.tb04269.x UR - https://pubmed.ncbi.nlm.nih.gov/6358512/ ID - 6358512 ER -