@article{article,
title = {Single and mixed infection by phytoplasmas of three 16S ribosomal subgroups (IB: aster yellows, VC: flavescence doree and XIIA: stolbur) in grapevines of southeastern Piemonte},
author = {},
year = {2001},
journal = {Informatore Fitopatologico},
volume = {51},
number = {9},
pages = {58-63},
howpublished = "\url{https://eurekamag.com/research/003/935/003935041.php}"
}