About: http://webisa.webdatacommons.org/345931562

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	It is recommended to follow a calculation technique (as described in some books, e.g. Kotov) when calculating variations.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com