author = { Hammar, Nesrine AND Belarbi, Yacine },

title = { R&D, innovation and productivity relationships evidence from threshold panel model },

publisher = {},

isbn = {2589-2975},

keywords = { R&D expenditures , Innovation , Productivity Medium-high technology exports , Panel smooth threshold regression , Aufsatz in Zeitschrift },

year = {2021},

address = { },

url = { http://slubdd.de/katalog?TN_libero_mab2 }