Ralf Schaarschmidt Jens Lufter Schema Versioning for Archives in Database Systems. 86-97 1999 conf/er/99w ER (Workshops) db/conf/er/erw99.html#SchaarschmidtL99 db/conf/er/SchaarschmidtL99.html journals/is/CastroGS97 conf/vldb/CochranePM96 journals/sigmod/ACT-NET96 conf/knowright/HerbstM95 ... ... ... journals/sigmod/Roddick92a books/kl/snodgrass95/RoddickS95a ... books/kl/Snodgrass95 books/bc/TanselCGJSS93