Chaotic behaviour of acoustic emission generated in materials under stress / Z. MAJEWSKA, Z. MORTIMER // W: Rockbursts and seismicity in mine : dynamic rock mass response to mining : the fifth international symposium on Rockburst and Seismicity in Mines (RaSiM5) : 17–20 September 2001 / The South African Institute of Mining and Metallurgy. — Johannesburg : SAIMM, [2001]. — (Symposium Series / The South African Institute of Mining and Metallurgy ; S27). — S. 181–189. — Bibliogr. s. 188–189

Geostatistics: modeling spatial uncertainty by Jean-Paul Chilés, Pierre Delfiner. John Wiley and Sons, 1999 / Rec. Zofia MORTIMER // Pure and Applied Geophysics ; ISSN 0033-4553. — 2001 vol. 158 no. 9–10, s. 1838–1839. — tekst: https://link-1springer-1com-1nyztlj6i0035.wbg2.bg.agh.edu.pl/content/pdf/10.1007%2FPL00001245.pdf

Nonlinear dynamics of acoustic emission derived from rocks under compression-comparison of various approaches / Zofia MAJEWSKA, Zofia MORTIMER // W: 28\textsuperscript{th} Polish–Czech–Slovakian symposium on Mining geophysics : Niedzica, 11–13 June 2001 : proceedings : abstracts / [red. nauk. Wacław M. Zuberek] ; University of Silesia. Faculty of Earth Sciences. Department of Applied Geology. — Sosnowiec : US. Faculty of Earth Eciences. Department of Applied Geology, 2001. — S. 32

Nonlinear dynamics parameters estimated from the induced seismicity in Polish coal mines / Zofia M. MORTIMER, Adam CICHY // Acta Geophysica Polonica / Instytut Geofizyki Polskiej Akademii Nauk, Warszawa ; ISSN 0001-5725. — 2001 vol. 49 no. 3, s. 303–316. — Bibliogr. s. 314–316, Abstr.