Osters, O., Nilges, T., Bachhuber, F., Pielnhofer, F., Weihrich, R., Schöneich, M., & Schmidt, P. (2012). Synthesis and identification of metastable compounds: black arsenic--science or fiction? Angewandte Chemie (International Ed. In English), 51(12), 2994-7. https://doi.org/10.1002/anie.201106479 (Original work published 2012)