Ratcliffe, N. M., Guernion, N., & de Lacy Costello, B. (2002). The synthesis of 3-octadecyl- and 3-docosylpyrrole, their polymerisation and incorporation into novel composite gas sensitive resistors. Synthetic Metals, 128(2), 139-147. https://doi.org/10.1016/S0379-6779%2801%2900551-3