@Article{IPB-1555, author = {Gago, S. and Costa, N. and Semorile, L. and Grau, O.}, title = {{Sequence variability in p27 gene of Citrus tristeza virus (CTV) revealed by SSCP analysis}}, year = {1999}, pages = {41-50}, journal = {Electronic Journal of Biotechnology}, volume = {2}, }