Arregui, I.; Oliver, R.; Ballester, J. L.. , "Fast and Alfvén MHD waves in sheared coronal arcades". "Solar Magnetic Fields and Oscillations. Third Advances in Solar Physics Euroconference", Caputh, Germany, 1998. Poster.
I. Arregui R. Oliver J.L. Ballester. , "Fast and Alfvén MHD waves in sheared coronal arcades". "3rd Advances in solar physics euroconference: solar magnetic fields and oscillations", Potsdam, Germany, 1998. Poster.
Murawski, K.; Oliver, R.; Ballester, J. L.. , "Nonlinear fast magnetohydrodynamic waves in solar coronal holes". "European Geophysical Society General Assembly 1998", Niza, France, 1998. Paper presentation.
Murawski, K.; Oliver, R.; Ballester, J. L.. , "Nonlinear fast magnetohydrodynamic waves in solar coronal holes". "Solar Magnetic Fields and Oscillations. Third Advances in Solar Physics Euroconference", Caputh, Germany, 1998. Paper presentation.
Oliver, R.; Ballester, J. L.. , "Is there memory in solar activity?". "European Geophysical Society General Assembly 1998", Niza, France, 1998. Poster.
Terradas, J.; Oliver, R.; Ballester, J. L.. , "MHD waves in coronal magnetostatic arcades". "Solar Magnetic Fields and Oscillations", Caputh, Germany, 1998. Poster.
Molowny-Horas, R.; Oliver, R.; Ballester, J. L.; Wiehr, E.; Balthasar, H.; Baudin, F.. , "Doppler oscillations in a solar prominence from Hβ filtergrams time series". "Solar Magnetic Fields and Oscillations. Third Advances in Solar Physics Euroconference", Caputh, Germany, 1998. Poster.
José Luis Ballester Mortes. , "Magnetohidrodinámicas de la Corona Solar". "IV School La Hechicera: Relatividad, Campos y Astrofísica", Mérida, Venezuela, 1998. Invited conference.
Terradas, J.; Oliver, R.; Ballester, J. L.. , "MHD waves in coronal magnetostatic arcades". "Dynamical MHD Phenomena in Solar and Astrophysical Plasmas", Heraklion, Creta, Greece, 1998. Poster.
Mas, M.; Torrens, J.; Calvo, T.; Carbonell, M.. , "Operadores idempotentes sobre un conjunto finito". "VIII Congreso Español sobre Tecnologías y lógica Fuzzy (ESTYLF 98).", Pamplona, Spain, 1998. Publication data: Actas del VIII Congreso Español sobre Tecnologías y lógica Fuzzy. Universitat Pública de Navarra pp: 163-169. Paper presentation.