@article{articlea844d6cb,
title   = {Lower carboniferous palynomorphs from Potí Formation, Parnaíba basin, Brazil},
author = {Sundaram, Dharani and Carvalho, Ronaldo Gama de and Coimbra, Armando Márcio},
year = {1981},
doi = {10.11606/issn.2316-8978.v12i0p23-31},
journal   = {Boletim IG}
}