C. Freire | GINaPshttps://www.ginapsgroup.com/author/c.-freire/C. FreireWowchemy (https://wowchemy.com)es© 2021 - `2023` [@Biotovar](https://twitter.com/BioTovar)Wed, 01 Jan 2020 00:00:00 +0000https://www.ginapsgroup.com/media/static/media/contact.jpgC. Freirehttps://www.ginapsgroup.com/author/c.-freire/Acid functionalized coal fly ashes: New solid catalysts for levulinic acid esterificationhttps://www.ginapsgroup.com/publication/peixoto-202074/Wed, 01 Jan 2020 00:00:00 +0000https://www.ginapsgroup.com/publication/peixoto-202074/