TY - RPRT TI - Superfluid helium: visualization of quantized vortices. AU - Gregory P Bewley AU - Daniel P Lathrop AU - Katepalli R Sreenivasan PY - 2006 DO - 10.1038/441588a UR - https://pubmed.ncbi.nlm.nih.gov/16738652/ ID - 16738652 ER -