Howells, Kristy ORCID: 0000-0002-0758-7532, Sääkslahti, Arja ORCID: 0000-0003-4354-0990, De Martelaer, Kristine ORCID: 0000-0001-8242-2669, De Craemer, Marieke ORCID: 0000-0002-5220-7850, Jidovtseff, Boris ORCID: 0000-0002-7535-8993, Dong, Jinxia, Nørager Johansen, Danielle Louise, Skovgaard, Thomas ORCID: 0000-0001-6729-4988, Naul, Roland, Coulter, Maura ORCID: 0000-0001-9406-2349, Duff, Christina, Tortella, Patrizia ORCID: 0000-0002-2553-9163, Fumagalli, Guido ORCID: 0000-0003-2195-4973, Fjortoft, Ingunn ORCID: 0000-0003-2945-4703, Howells, Kristy ORCID: 0000-0002-0758-7532 and Urtel, Mark (2019) Physical activity recommendations for early childhood: an international analysis of ten different countries’ current national physical activity policies and practices for those under the age of 5. In: Howells, Kristy ORCID: 0000-0002-0758-7532 and Sääkslahti, Arja ORCID: 0000-0003-4354-0990, (eds.) Physical Education in Early Childhood Education and Care: Research–Best Practice-Situation. Slovak Scientific Society for Physical Education and Sport, Bratislava, Slovakia, pp. 321-336. ISBN 978-80-89075-81-2
Duff, Christina (2018) Kids active: the development and evaluation of an active play and fundamental movement skill intervention for preschool children. Master of Science thesis, Dublin City University.