Geddes, J., Ułas, J., Brunner, L., Choe, W., & Cotman, C. (1992). Hippocampal excitatory amino acid receptors in elderly, normal individuals and those with Alzheimer’s disease: non-N-methyl-D-aspartate receptors. Neuroscience, 50(1), 23-34. https://doi.org/10.1016/0306-4522(92)90379-g

Ułas, J., Brunner, L., Geddes, J., Choe, W., & Cotman, C. (1992). N-methyl-D-aspartate receptor complex in the hippocampus of elderly, normal individuals and those with Alzheimer’s disease. Neuroscience, 49(1), 45-61. https://doi.org/10.1016/0306-4522(92)90075-d