1. Averett DR, Roth B, Burchall JJ, Baccanari DP (1979) Dihydrofolate reductase fromNeisseria sp. Antimicrob Agents Chemother 15:428–435
2. Blakley RL (1960) Crystalline dihydropterylglutamic acid. Nature 188:231–232
3. Blakley RL (1969) The biochemistry of folic acid and related pteridines. Amsterdam-London: North Holland
4. Burchall JJ (1975) Trimethoprim and pyrimethamine. In: Corcoran JW, Hahn FE (eds) Antibiotics, vol III. Berlin, Heidelberg, New York: Springer-Verlag, pp 304–320
5. Burchall JJ, Hitchings GH (1965) Inhibitor binding analysis of dihydrofolate reductases from various species. Mol Pharmacol 1:126–136