@incollection{2009:cisneros:patenting_, title = {Patenting naturally existing structures}, year = {2009}, note = {}, booktitle = {Patentability Requirements for Nanotechnological Inventions}, pages = {31--37}, edition = {1}, author = {Cisneros, Mario}, publisher = {Nomos}, address = {Baden-Baden}, series = {Munich Intellectual Property Law Center - MIPLC Studies}, volume = {5} }