About: http://webisa.webdatacommons.org/411956727

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	The article is aimed particularly at providing the readers who do not work on gravitational lensing a relatively easy introduction to this active research field in today's astrophysics.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov