Weigelt, JohanOtting, Gottfried2026-03-232026-03-231064-1858ORCID:/0000-0002-0563-0146/work/209074889https://hdl.handle.net/1885/7338076542en<sup>13</sup>C-Relayed <sup>13</sup>C HSQC at Natural Isotopic Abundance199510.1006/jmra.1995.12010009263280