Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 32 references without a DOI — listed, not checked
no DOI — not checkedAdministrative Committee on Cultural Relic of Guangdong Province, 1992. The Historical and Cultural Cities in Guangdong. Guanngdong Cartographic Press, Guangzhou, China (in Chinese), 563 pp.
no DOI — not checkedManagement of mature trees
no DOI — not checkedPromoting urban forestry through the urban planning process
no DOI — not checkedDetwyler, T.R., 1972. Vegetation in the city. In: Detwyler, T.R., Marcus, M.G. (Eds.), Urbanization and Environment: The Physical Geography of the City. Duxbury Press, Belmont, CA, pp. 229–259.
no DOI — not checkedSocial and economic benefits of trees in cities
no DOI — not checkedGrey, G.W., Deneke, F.J., 1986. Urban Forestry, 2nd Edition. Wiley, New York, 299 pp.
no DOI — not checkedGrey, G.W., 1996. The Urban Forest — Comprehensive Management. Wiley, New York, 156 pp.
no DOI — not checkedGreen Committee of Guangzhou, 1994. Information for Forest and Park Planting in Guangzhou Region. Guangzhou City Government, Guangzhou, China, unpublished document, 28 pp. (in Chinese).
no DOI — not checkedHou, S.K., 1956. The Flora of Guangzhou. Science Press, Beijing, China, 953 pp. (in Chinese).
no DOI — not checkedHuang, Z.M., Liang, J.Y., Wu, Y.B., Wan, Q.L., 1994. The Urban Climate of Guangzhou. Meteorology Press, Beijing, China, 153 pp. (in Chinese).
no DOI — not checkedJim, C.Y., 1990a. Trees in Hong Kong: Species for Landscape Planting. Hong Kong University Press, Hong Kong, 434 pp.
no DOI — not checkedDiversity of amenity-tree species in Hong Kong
no DOI — not checkedA comparative study of roadside-tree communities in urban Hong Kong and Guangzhou
no DOI — not checkedLandscape Bureau, 1995. The Chronicle of Parks and Greening in the City of Guangzhou. In: The Municipal Histories of Guangzhou Volume III, Guangzhou Press, Guangzhou, China, pp. 535–606 (in Chinese).
no DOI — not checkedFrom nature to nurture: the history of Sacramento’s urban forest
no DOI — not checkedMiller, R.W., 1997. Urban Forestry — Planning and Managing Urban Greenspaces, 2nd Edition. Prentice–Hall, New York, 502 pp.
no DOI — not checkedMinistry of Construction of China, 1992. The process of urban greening: collection of important documents concerning urban greening from 1949. Beijing, China, 269 pp. (unpublished document, in Chinese).
no DOI — not checkedHistorical vegetation change in Oakland and its implications for urban forest management
no DOI — not checkedPan, Z.G., You, Y.T., 1994. The Major Exotic Trees in China. Science and Technology Press, Beijing, China, 757 pp. (in Chinese).
no DOI — not checkedTrees and urban forestry in Beijing, China
no DOI — not checkedQu, D.J., 1670. The New Descriptions of Guangdong. Reprinted by People’s Press in 1991, Guangzhou, China, 643 pp. (in Chinese).
no DOI — not checkedRichards, N.A., Stevens, J.C., 1979. Street-side Space and Street Trees in Syracuse 1978. College of Environmental Science and Forestry, State University of New York, Syracuse, NY, 66 pp.
no DOI — not checkedSchmid, J.A., 1975. Urban vegetation — a review and Chicago case study. University of Chicago, Department of Geography Research Paper No. 61, Chicago, IL, 265 pp.
no DOI — not checkedShannon, C.E., Weaver, W., 1964. The Mathematical Theory of Communication. Illinois University Press, Urbana, IL, 125 pp.
no DOI — not checkedSouth China Institute of Botany, 1987. The Flora of Guangdong Province, Vol. I. Science Press of Guangdong, Guangzhou, China, 600 pp. (in Chinese).
no DOI — not checkedSouth China Institute of Botany, 1991. The Flora of Guangdong Province, Vol. II. Science Press of Guangdong, Guangzhou, China, 511 pp. (in Chinese).
no DOI — not checkedSouth China Institute of Botany, 1995. The Flora of Guangdong Province, Vol. III. Science Press of Guangdong, Guangzhou, China, 506 pp. (in Chinese).
no DOI — not checkedSynanthropic vegetation and structure of urban subsystems
no DOI — not checkedAustralian trees growing in China (in Chinese)
no DOI — not checkedYang, S.H., 1991. Studies of Urban Ecological Environment. Zhongshan University Press. Guangzhou, China, 183 pp. (in Chinese).
no DOI — not checkedZeng, Z.X., 1991. The Historical Geography of Guangzhou. People’s Press, Guangzhou, China, 438 pp. (in Chinese)
no DOI — not checkedStreet plantings in Guangzhou (in Chinese)
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