Between 'Extending the conceptual graph approach for data conceptual modelling' and 'The effects of interpulse interval on stochastic properties of electrical stimulation: models and measurements', which paper was published earlier?
Which one was published first, 'Extending the conceptual graph approach for data conceptual modelling' or 'The effects of interpulse interval on stochastic properties of electrical stimulation: models and measurements'?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/dke/MoulinC92> <https://dblp.org/rdf/schema#yearOfPublication> ?x . <https://dblp.org/rec/journals/tbe/MatsuokaRAM01> <https://dblp.org/rdf/schema#yearOfPublication> ?y . BIND(IF(?x < ?y, <https://dblp.org/rec/journals/dke/MoulinC92>, <https://dblp.org/rec/journals/tbe/MatsuokaRAM01>) AS ?answer) }
<https://dblp.org/rec/journals/dke/MoulinC92> <https://dblp.org/rec/journals/tbe/MatsuokaRAM01>