Hartikka, J., & Hefti, F. (1988). Development of septal cholinergic neurons in culture: Plating density and glial cells modulate effects of NGF on survival, fiber growth, and expression of transmitter-specific enzymes. J Neurosci.

Hartikka, J., و F. Hefti. "Development of Septal Cholinergic Neurons in Culture: Plating Density and Glial Cells Modulate Effects of NGF On Survival, Fiber Growth, and Expression of Transmitter-specific Enzymes." J Neurosci 1988.

Hartikka, J., و F. Hefti. "Development of Septal Cholinergic Neurons in Culture: Plating Density and Glial Cells Modulate Effects of NGF On Survival, Fiber Growth, and Expression of Transmitter-specific Enzymes." J Neurosci 1988.