This work has been released into the public domain by its author, University of Rochester. This applies worldwide. Estatu batzuetan beharbada hori ez da legez posible izango. Halakoetan: University of Rochester grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Public domainPublic domainfalsefalse
Public domainPublic domainfalsefalse
Lan hau jabetza publikoan dago bai bere jatorrizko herrialdean, bai egile eskubideak egilea hil eta 50 urtera edo gutxiagora iraungitzen diren gainerako herrialdeetan.