Bradshaw, Richard H., Styles, Bonnie, Giesecke, Thomas, Flantua, Suzette G., Bittmann, Felix, and Williams, John W.. Eric C. Grimm 1951–2020. Retrieved from https://par.nsf.gov/biblio/10228150. Vegetation History and Archaeobotany 30.3 Web. doi:10.1007/s00334-021-00828-z.

Bradshaw, Richard H., Styles, Bonnie, Giesecke, Thomas, Flantua, Suzette G., Bittmann, Felix, & Williams, John W.. Eric C. Grimm 1951–2020. Vegetation History and Archaeobotany, 30 (3). Retrieved from https://par.nsf.gov/biblio/10228150. https://doi.org/10.1007/s00334-021-00828-z

Bradshaw, Richard H., Styles, Bonnie, Giesecke, Thomas, Flantua, Suzette G., Bittmann, Felix, and Williams, John W.. "Eric C. Grimm 1951–2020". Vegetation History and Archaeobotany 30 (3). Country unknown/Code not available. https://doi.org/10.1007/s00334-021-00828-z. https://par.nsf.gov/biblio/10228150.

@article{osti_10228150,
place = {Country unknown/Code not available}, title = {Eric C. Grimm 1951–2020}, url = {https://par.nsf.gov/biblio/10228150}, DOI = {10.1007/s00334-021-00828-z}, abstractNote = {}, journal = {Vegetation History and Archaeobotany}, volume = {30}, number = {3}, author = {Bradshaw, Richard H. and Styles, Bonnie and Giesecke, Thomas and Flantua, Suzette G. and Bittmann, Felix and Williams, John W.}, editor = {null} }