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 19 references without a DOI — listed, not checked
no DOI — not checkedCagnin, M. A. H., Gomes, C. M. R., Gottlieb, O. R., Marx, M. C., Rocha, A. I. da, Silva, M. F. das G. F. da, Temperini, J. A., 1977: Biochemical systematics: methods and principles. ? Pl. Syst. Evol., Suppl.1: 53?76.
no DOI — not checkedCorner, E. J. H., 1976: The seeds of Dicotyledons. ? London: Cambridge University Press.
no DOI — not checkedDiels, L., 1936: The genetic phytogeography of the Southwestern Pacific with particular reference to Australia. ? In: Essays in geobotany in honor of William AlbertSetchell, pp. 189?194. ? Berkeley: University of California Press.
no DOI — not checked?, 1968: Limonoid bitter principles. ? Fortschr. Chem. Org. Naturst.26: 190?244.
no DOI — not checkedEngler, A., 1896:Rutaceae. ? Nat. Pflanzenfam.III 4: 95?201.
no DOI — not checked?, 1931:Rutaceae. ? Nat. Pflanzenfam. 2nd edn.19a: 187?359, 458?459.
no DOI — not checkedGottlieb, O. R., 1980: Micromolecular systematics: principles and practice. ? InBisby, F. A., Vaughan, J. G., Wright, C. A., (Eds.): Chemosystematics: principles and practice, pp. 329?352. ? London: Academic Press.
no DOI — not checkedGray, A. I., 1983: Structural diversity and distribution of coumarins and chromones in theRutales. ? InWaterman, P. G., Grundon, M. F. (Eds.): Chemistry and chemical taxonomy of theRutales, pp. 97?146. ? London: Academic Press.
no DOI — not checkedGut, B.J., 1966: Beiträge zur Morphologie des Gynoeceums und der Blütenachse einiger Rutaceen. ? Bot. Jahrb.85: 10?247.
no DOI — not checkedHartl, D., 1957: Struktur und Herkunft des Endokarps der Rutaceen. ? Beitr. Biol. Pfl.34: 35?49.
no DOI — not checkedMelchior, H., Wedermann, E. (Eds.) 1964:A. Engler's Syllabus der Pflanzenfamilien, Vols.1 and2. 12th edn. ? Berlin: Bornträger.
no DOI — not checkedMester, I., 1983: Structural diversity and distribution of alkaloids in theRutales. ? InWaterman, P. G., Grundon, M. F., (Eds.): Chemistry and chemical taxonomy of theRutales, pp. 31?96. ? London: Academic Press.
no DOI — not checked?, 1972:Rhabdodendraceae. Flora Neotropica, Monograph11. ? New York: Hafner Publ. Comp.
no DOI — not checkedScholz, H., 1964:Rutales. ? InMelchior, H., Wedermann, E. (Eds.):A. Engler's Syllabus der Pflanzenfamilien, Vol.2, 12th edn., pp. 262?277. ? Berlin: Bornträger.
no DOI — not checkedO'Sullivan, J., 1983: Structural diversity and distribution of lignans in theRutales. ? InWaterman, P. G., Grundon, M. F., (Eds.): Chemistry and chemical taxonomy of theRutales, pp. 267?279. ? London: Academic Press.
no DOI — not checkedSwingle, W. T., 1938: A new taxonomic arrangement of the orange subfamily,Aurantioideae. ? J. Washington Acad. Sci.28: 530?533.
no DOI — not checked?, 1967: The botany ofCitrus and its wild relatives. ? InReuter, W., Batchelor, L. D., Webber, H. J., (Eds.): The Citrus industry, pp. 190?430. ? Berkeley: University of California Press.
no DOI — not checkedTanaka, T., 1936: The taxonomy and nomenclature ofRutaceae-Aurantioideae. ? Blumea2: 101?110.
no DOI — not checked?, (Eds.), 1983: Chemistry and chemical taxonomy of theRutales. ? London: Academic Press.
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