@Article{JPDE-1-1,
author = {},
title = {Hypoellipticity of Nonlinear Second Order Partial Differential Equations},
journal = {Journal of Partial Differential Equations},
year = {1988},
volume = {1},
number = {1},
pages = {85--95},
abstract = {},
issn = {2079-732X},
doi = {https://doi.org/1988-JPDE-5856},
url = {https://global-sci.com/article/89047/hypoellipticity-of-nonlinear-second-order-partial-differential-equations}
}