TY - RPRT TI - Modern Michelson-Morley experiment using cryogenic optical resonators. AU - Holger Müller AU - Sven Herrmann AU - Claus Braxmaier AU - Stephan Schiller AU - Achim Peters PY - 2003 DO - 10.1103/physrevlett.91.020401 UR - https://pubmed.ncbi.nlm.nih.gov/12906465/ ID - 12906465 ER -