Ashino, Ryuichi, Michihiro Nagase, and Rémi Vaillancourt. “Pseudodifferential Operators in 𝐿ᵖ(ℝⁿ)”. CUBO, A Mathematical Journal 6, no. 3 (October 1, 2004): 91–129. Accessed October 12, 2025. https://cubo.ufro.cl/index.php/cubo/article/view/1635.