Page 1 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 2 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 3 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 4 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 5 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 6 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 7 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241VPage 8 1999ESASP.433..241V http://adsabs.harvard.edu/abs/1999ESASP.433..241V