@article{van kampen_1998, title={Remarks on Non-Markov Processes}, volume={28}, ISSN={0103-9733}, url={https://doi.org/10.1590/S0103-97331998000200003}, DOI={10.1590/S0103-97331998000200003}, number={2}, journal={Brazilian Journal of Physics}, publisher={Sociedade Brasileira de Física}, author={van Kampen, N.G.}, year={1998}, month={June}, pages={90–96} }