About: http://webisa.webdatacommons.org/19272980

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For various reasons such as external noise, power surges or interruptions, or the like, the incoming reference clock signals experience interruptions which can vary from a brief fraction of a second to a second or more.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com