Mention the years in which 'Newton-type methods for non-convex optimization under inexact Hessian information' and 'Non-data-aided distorted constellation estimation and demodulation for mmWave communications' were published.
When were 'Newton-type methods for non-convex optimization under inexact Hessian information' and 'Non-data-aided distorted constellation estimation and demodulation for mmWave communications' published?
SELECT DISTINCT ?answer WHERE { { <https://dblp.org/rec/journals/mp/XuRM20> <https://dblp.org/rdf/schema#yearOfPublication> ?answer } UNION { <https://dblp.org/rec/conf/icc/ZhangXPJZ12> <https://dblp.org/rdf/schema#yearOfPublication> ?answer } }
<https://dblp.org/rec/journals/mp/XuRM20> <https://dblp.org/rec/conf/icc/ZhangXPJZ12>