Werner's theory, proposed by Alfred Werner in 1893, was the first attempt to explain the bonding in coordination compounds. It suggested that metal ions can form coordination complexes by donating electron pairs to coordinate covalent bonds with surrounding ligands. This theory laid the foundation for modern coordination chemistry.

Werner Winzen has written:

'Anschauliche Topologie' -- subject(s): Graph theory

Werner Meyer-Eppler has written:

'Grundlagen und Anwendungen der Informationstheorie' -- subject(s): Information theory, Information Theory

Alfred Werner has played a major role in the advancement of atomic physics. He worked to derive compounds by focusing on a theory of coordination, in which addition and insertion compounds and auxiliary and principal valencies have been used.

Werner Becker has written:

'Idealismus und Skeptizismus' -- subject(s): Apperception, Fichte, Johann Gottlieb, 1762-1814, Knowledge, Theory of, Self-consciousness, Theory of Knowledge