The paper 'On learning the derivatives of an unknown mapping with multilayer feedforward networks' has how many authors?
How many authors does 'On learning the derivatives of an unknown mapping with multilayer feedforward networks' have?
SELECT ?answer WHERE { <https://dblp.org/rec/journals/nn/GallantW92> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/journals/nn/GallantW92>