Lippia gracilis Schauer genotypes by LC fingerprint and chemometrics analyses - Gomes, S VF; Santos, A DC; Moraes, V RS; Martins, L RR; Viana, M D; Blank, A F; Pereira-Filho, E R; Cass, Q B; Nogueira, P CL; Alves, P B (Chromatographia, 2010)