Bass, Robert: Lives in Balance. Utilitarianism and animal research. In: The Ethics of Animal Research. Hrsg. v. Jeremy R. Garrett. Cambridge, Mass./London 2012. Internet: https://books.google.de/books?id=t9jxCwAAQBAJ&pg=PA295&dq=The+Ethics+of+Animal+Research.+Exploring+a+Controversy.&hl=en&sa=X&ved=0ahUKEwiXwtG4y57TAhUCQBoKHbwGCrsQ6AEIJjAB#v=onepage&q&f=false. S. 81–105.