vi97tdht
hierarchical chain (BT): v vi vi9 vi97 vi97t vi97td vi97tdh
v
vi
vi9
vi97
vi97t
vi97td
vi97tdh
subclasses
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ILC 2 class details — ISKO Italia <http://www.iskoi.org/ilc/1/details.php> : 2011.07.15 - 2011.07.18 -