@article{DOCMA_2020__25__a59,
     author = {Dotsenko, Vladimir and Markl, Martin and Remm, Elisabeth},
     title = {Non-Koszulness of {Operads} and {Positivity} of {Poincar\'e} {Series}},
     journal = {Documenta mathematica},
     pages = {309--328},
     publisher = {mathdoc},
     volume = {25},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2020__25__a59/}
}