@book{Witte2014, author = {Hermann Witte}, title = {Nachhaltigkeit, {\"o}konomische Gleichgewichte und Wertsch{\"o}pfung: Sustentabilidad, equilibrios econ{\´o}micos y valor agregado}, publisher = {Edi UNS}, address = {Bah{\´i}a Blanca}, isbn = {978-987-1907-99-1}, pages = {240}, year = {2014}, language = {de} }