TY - BOOK ID - 86328469 TI - Conceptual modeling : 40th International Conference, ER 2021, Virtual event, October 18-21, 2021, proceedings PY - 2021 SN - 3030890228 303089021X PB - Cham, Switzerland : Springer, DB - UniCat KW - Database design KW - Web databases UR - https://www.unicat.be/uniCat?func=search&query=sysid:86328469 AB - ER -