I'm interested in this research - could you provide the full-text for it? or any kind of instrument of assessing nutrition in children with cerebral palsy
Your question should be clarified. Are you talking about the quality of food intake, food literacy or simply a method to detect undernutrition?
Nevertheless, to the best of my knowledge, there is no specific tool for assessing "nutrition" in the context of cerebral palsy. However, the following articles may be relevant to guide screening.
Samson-Fang, L., & Bell, K. L. (2013). Assessment of growth and nutrition in children with cerebral palsy. European Journal of Clinical Nutrition, 67(S2), S5.
Benfer, K. A., Weir, K. A., Ware, R. S., Davies, P. S., Arvedson, J., Boyd, R. N., & Bell, K. L. (2017). Parent‐reported indicators for detecting feeding and swallowing difficulties and undernutrition in preschool‐aged children with cerebral palsy. Developmental Medicine & Child Neurology, 59(11), 1181-1187.