Bladel, J. van. Singular electromagnetic fields and sources / J. van Bladel. - Oxford : New York : Clarendon Press ; Oxford University Press, 1991. - xiii, 237 p. : ill. ; 24 cm. - The Oxford engineering science series. . Includes bibliographical references and index. ISBN: 0198562004 (hbk.) Subjects--Topical Terms: Electromagnetic fields--Mathematics.