<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Optic> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_physics_articles_(H)> .
<http://caligraph.org/resource/Hermann_von_Helmholtz>	<http://caligraph.org/ontology/knownFor>	<http://caligraph.org/resource/Helmholtz_reciprocity> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Stokes\u2013Helmholtz reciprocity principle" .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Helmholtz reciprocity" .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Bidirectional_reflectance_distribution_function> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_things_named_after_Hermann_von_Helmholtz> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Stokes-Helmholtz reciprocity principle" .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2004/02/skos/core#altLabel>	"reversion-reciprocity principle" .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2000/01/rdf-schema#label>	"Helmholtz reciprocity" .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Thing_named_after_Hermann_von_Helmholtz> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Optics> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Helmholtz_reciprocity> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Reciprocity> .
<http://caligraph.org/resource/Helmholtz_reciprocity>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Helmholtz reciprocity principle" .