*Couturat, L., Jespersen, O., Lorenz, R., Ostwalkd, W., and Pfaundler, L. "International Language and Science: Considerations on the Introduction of an International Language into Science.
* Couturat, L., Jespersen, O., Lorenz, R., Ostwalkd, W., and Pfaundler, L. "International Language and Science: Considerations on the Introduction of an International Language into Science.