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van de Grind WA, Koenderink JJ, van Doorn AJ.van de Grind WA, et al. Among authors: koenderink jj.Exp Brain Res. 1992;91(1):135-50. doi: 10.1007/BF00230022.Exp Brain Res. 1992.PMID: 1301367
van de Grind WA, Koenderink JJ, van Doorn AJ.van de Grind WA, et al. Among authors: koenderink jj.J Opt Soc Am A. 1987 Aug;4(8):1643-52. doi: 10.1364/josaa.4.001643.J Opt Soc Am A. 1987.PMID: 3625348