TY - RPRT TI - The REM-NREM sleep cycle: renewal process or periodically driven process? AU - H Schulz AU - G Dirlich AU - S Balteskonis AU - J Zulley PY - 1980 DO - 10.1093/sleep/2.3.319 UR - https://pubmed.ncbi.nlm.nih.gov/7403735/ ID - 7403735 ER -