@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <http://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://urn.fi/URN:NBN:fi:bib:me:W00280282400> schema:contributor <http://urn.fi/URN:NBN:fi:bib:me:P00280282402> ;
    schema:name "Tone variations in black-and-white illustrations printed by the positive cophy method, using offset" .

<http://urn.fi/URN:NBN:fi:bib:me:P00280282402> a schema:Person ;
    schema:name "Piiroinen, Ilpo" .