MAP20120005037 Avanzi, B. Optimal dividends and capital injections in the dual model with difussion / B. Avanzi, J. Shen, B. Wong En: Astin bulletin. - Belgium : ASTIN and AFIR Sections of the International Actuarial Association = ISSN 0515-0361. - 01/11/2011 Tomo 41 Número 2 - 2011 I. Shen, J. . II. Wong, B. . III. Title.