In 1987, how many papers did the authors of 'Simplified Stable Merging Tasks' publish?
How many papers did the authors of 'Simplified Stable Merging Tasks' publish in 1987?
SELECT DISTINCT (COUNT(?answer) AS ?count) WHERE { <https://dblp.org/rec/journals/jal/SaloweS87> <https://dblp.org/rdf/schema#authoredBy> ?x . ?answer <https://dblp.org/rdf/schema#authoredBy> ?x . ?answer <https://dblp.org/rdf/schema#yearOfPublication> '1987' }
<https://dblp.org/rec/journals/jal/SaloweS87>