1. Effects of picrotoxin on sensitivity and receptive field properties of ganglion cells in the frog retina;Ba¨ckstro¨m;Med. Biol.,1981
2. Receptive field organization of ganglion cells in the frog retina: contributions from cones, green rods and red rods;Ba¨ckstro¨m;J. Physiol.,1975
3. Receptive field organization of ganglion cells in the frog retina: inhibitory surround and direction selectivity;Ba¨ckstro¨m,1982
4. Directional selectivity and colour coding in the frog retina;Ba¨ckstro¨m;Med. Biol.,1978
5. Summation and inhibition in the frog's retina;Barlow;J. Physiol.,1953