9O'Connell M, Valdora G, Peltzer G, et al. A practical approach for fish freshness determinations using a portable electronic nose[J].Sensors and Actuators B, 2001,80(2):149-154.
10Pathange L P, Mallikarjunan P, Marini R P, et al. Non- destructive evaluation of apple maturity using an electronic nose system[J].Journal of Food Engineering, 2008,85(4):625-631.