1. Brovmlee, D.E., Hörz, F., Vedder, J.F., Gault, D.E., and Härtung, J.B.: 1973, “Some physical, parameters in micrometeoroids”, Proc. Lunar Sci. Conf. 4th, pp. 3197–3213
2. Cannon, E.T., and Turner, G.H.: 1967, “Cratering in low-density targets”, NASA CR-798
3. Fechtig, H., Grün, E., and Kissel, J.: 1978, “Laboratory Simulation” as Chapter 9 in “Cosmic Dust”, John Wiley and Sons, Chichester, Ed. J.A.M. McDonnell
4. Fish, R.H., and Summers, J.L.: 1965, “The effects of material properties on threshold penetration”, Proc. 7th Hypervelocity Impact Symposium 3, 2
5. Hartmann, W.K.: 1978, “Planet formation: mechanism of early growth”, Icarus 33, pp. 50–61