TY - RPRT TI - Single-atom spin-flip spectroscopy. AU - A J Heinrich AU - J A Gupta AU - C P Lutz AU - D M Eigler PY - 2004 DO - 10.1126/science.1101077 UR - https://pubmed.ncbi.nlm.nih.gov/15358866/ ID - 15358866 ER -