What are the titles of the papers on Precision positionning that were published in ECC in 1999?
In the year 1999 in ECC, what are the titles of the research papers on Precision positionning?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/eucc/BoichotDDLP99> <https://dblp.org/rdf/schema#publishedIn> 'ECC' . <https://dblp.org/rec/conf/eucc/BoichotDDLP99> <https://dblp.org/rdf/schema#yearOfPublication> '1999' . <https://dblp.org/rec/conf/eucc/BoichotDDLP99> <https://dblp.org/rdf/schema#title> ?answer }
<https://dblp.org/rec/conf/eucc/BoichotDDLP99>