1998, Manuel Baud-Bovy, Fred R. Lawson, Tourism and Recreation Handbook of Planning and Design, Butterworth-Heinemann:
... maintenance includes : compacting the snow when it is falling (with snow cats and ratracks); reducing the formation of snow bumps; producing artificial snow with 'snow guns' (generally to maintain a piste back to the resort[…]
2001, Annals of Warsaw Agricultural University, SGGW-AR.: Horticulture, page 172:
Usage of scouters and ratracks as transportation
2022 July 4, Jean de Blonay, Repercussions, Babelcube Inc., →ISBN:
The track, freshly groomed by ratracks, had practically no bumps. He had taken a steady pace, not too fast, but still sustained. He had turned several times and she was following boldly. Then, he had tried a move that had worked so well[…]
