Coblenz, Michael, Oei, Reed, Etzel, Tyler, Koronkevich, Paulette, Baker, Miles, Bloem, Yannick, Myers, Brad A., Sunshine, Joshua, and Aldrich, Jonathan. Obsidian: Typestate and Assets for Safer Blockchain Programming. Retrieved from https://par.nsf.gov/biblio/10215826. ACM Transactions on Programming Languages and Systems 42.3 Web. doi:10.1145/3417516.

Coblenz, Michael, Oei, Reed, Etzel, Tyler, Koronkevich, Paulette, Baker, Miles, Bloem, Yannick, Myers, Brad A., Sunshine, Joshua, & Aldrich, Jonathan. Obsidian: Typestate and Assets for Safer Blockchain Programming. ACM Transactions on Programming Languages and Systems, 42 (3). Retrieved from https://par.nsf.gov/biblio/10215826. https://doi.org/10.1145/3417516

Coblenz, Michael, Oei, Reed, Etzel, Tyler, Koronkevich, Paulette, Baker, Miles, Bloem, Yannick, Myers, Brad A., Sunshine, Joshua, and Aldrich, Jonathan. "Obsidian: Typestate and Assets for Safer Blockchain Programming". ACM Transactions on Programming Languages and Systems 42 (3). Country unknown/Code not available. https://doi.org/10.1145/3417516. https://par.nsf.gov/biblio/10215826.

@article{osti_10215826,
place = {Country unknown/Code not available}, title = {Obsidian: Typestate and Assets for Safer Blockchain Programming}, url = {https://par.nsf.gov/biblio/10215826}, DOI = {10.1145/3417516}, abstractNote = {}, journal = {ACM Transactions on Programming Languages and Systems}, volume = {42}, number = {3}, author = {Coblenz, Michael and Oei, Reed and Etzel, Tyler and Koronkevich, Paulette and Baker, Miles and Bloem, Yannick and Myers, Brad A. and Sunshine, Joshua and Aldrich, Jonathan}, editor = {null} }