00446nam a2200145Ia 4500003000900000008004100009020001800050040001600068080002300084100002300107245009300130260003700223300002300260650001700283IN-BaIIA211028s9999    xx            000 0 eng d  a0-7923-3638-0  cIIA Library  a524.66(082.2)bTHE  aDavies, Jonathan I 4aThe opacity of spiral diskscJonathan I Davies                                            aDordrechtbKluwer Academicc1995  a[various pagings.]  aSpiral Disks