Maeda, K., and S. Wiemer. “Significance Test for Seismicity Rate Changes before the 1987 Chiba-Toho-Oki Earthquake (M 6.7) Japan”. Annals of Geophysics 42, no. 5 (November 25, 1999). Accessed May 5, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3764.