Mention the year in which the first papers of the authors of 'Flexible power-efficient Nyquist-OTDM transmitter, using a WSS and time-lens effect' were published.
When were the first papers of the authors of 'Flexible power-efficient Nyquist-OTDM transmitter, using a WSS and time-lens effect' published?
SELECT DISTINCT ?answer MIN(xsd:integer(?y)) AS ?y WHERE { <https://dblp.org/rec/conf/ofc/CincottiSMKHOMH15> <https://dblp.org/rdf/schema#authoredBy> ?answer . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer . ?x <https://dblp.org/rdf/schema#yearOfPublication> ?y }
<https://dblp.org/rec/conf/ofc/CincottiSMKHOMH15>