Pitch angle control of wind turbine systems in cold weather conditions using μ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mu$$\end{document} robust controller Tahere Pourseif*, Ali Afzalian, 10.1007/s40095-017-0231-y Requires Subscription HTML Requires Subscription PDF views: 71 downloads: 61