Biblioteca del Congreso (Estados Unidos), 22 agosto 2017: catálogo electrónico https://goo.gl/vJwcwP

Optimal investment, growth options, and security returns, c1998: t.p. (Jonathan Berk) abstract (Sch. of Bus. Admin., Univ. of Wash., Seattle, WA, and NBER

OCLC database, 9/14/98 (usages: Jonathan Berk, Jonathan B. Berk)

Email response from J. Berk, 9/21/98 (Jonathan B.; b. 4/22/62)

Finanzas corporativas, 2008: portada Jonathan Berk