Ballester, J. L., "Activity in prominences prior to eruption", "Solar Dynamic Phenomena & Solar Wind Consequences. ESA", Issue SP-373, Pages 13-21, 1994. Review.
Cadez, V. M.; Ballester, J. L., "Local waves in a magnetic arcade embedded in the solar corona", "Astronomy and Astrophysics", Issue 292, Pages 669-676, 1994. Paper.
Oliver, R.; Ballester, J. L., "The North - South asymmetry of sunspot areas during solar cycle 22", "Solar Physics", Issue 152, Pages 481-485, 1994. Paper.
Ballester, J. L., "Periodicities in solar activity", "Reports on Astronomy", Pages 56-58, 1994. Review.
Carbonell, M.; Oliver, R.; Ballester, J. L., "A search for chaotic behaviour in solar activity", "Astronomy and Astrophysics", Volume 290, Pages 983-994, 1994. Paper.
Cadez, V. M.; Oliver, R.; Ballester, J. L., "The shape of a magnetic arcade embedded on the solar corona", "Astronomy and Astrophysics", Issue 282, Pages 934-938, 1994. Paper.