A visual interface for browsing and manipulating statistical entities

Statistical relational tables for statistical database management

IEEE Transactions on Software Engineering

Extending relational algebra and relational calculus with set-valued attributes and aggregate functions

ACM Transactions on Database Systems (TODS)

Design of statistical databases: a methodology for the conceptual step

Information Systems

STORM: a statistical object representation model

SSDBM V Proceedings of the fifth international conference on Statistical and scientific database management

Equivalence of Relational Algebra and Relational Calculus Query Languages Having Aggregate Functions

Journal of the ACM (JACM)

Modelling summary data

SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data

Handling summary information in a database: derivability

SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data

Mefisto: A Functional Model for Statistical Entities

IEEE Transactions on Knowledge and Data Engineering

The Classification Problem with Semantically Heterogeneous Data

Proceedings of the 4th International Working Conference SSDBM on Statistical and Scientific Database Management