Bučkovska, Aneta. “BILINEAR HILBERT TRANSFORM IN \(\mathcal{G}_{L^{p_1}} \times \mathcal{G}_{L^{p_2}}\)”. Matematichki Bilten, vol. 24, no. 1, Jan. 2000, pp. 77-84, https://bilten.smm.org.mk/index.php/bilten/article/view/1645.