ROCHA DE CARVALHO ALMEIDA HR, Vaz Manso V do A, de Andrade Lima RC, Fonseca da Silva D. Mapping of the retrogradation and coastal vulnerability of the seashore at Barra de São Miguel County, Brazil. Int J Innov Educ Res. 2019;7(4):397-413. doi:10.31686/ijier.vol7.iss4.1426