Karolina Porada,  Land Art in Public Spaces Design: Remediation, Prevention of Environmental Risks and Recycling as a Consequence of the Avant-Garde Activity of Landscape Architecture.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2018, vol. 142(10). 987 - 993
    [viewed 30 October 2020]. Available from: https://publications.waset.org/pdf/10009656.