The gas turbulence in planetary nebulae: quantification and multi-D maps from long-slit, wide-spectral range echellogramsF. Sabbadin, M. Turatto, S. Benetti, R. Ragazzoni and E. CappellaroA&A, 488 1 (2008) 225-234DOI: https://doi.org/10.1051/0004-6361:200809429
