@article {Pollar1978-zs,
	title = {The expected number of visits of a sequence of normal partial sums to each side of a boundary},
	journal = {Journal of Applied Probability},
	volume = {15},
	number = {1},
	year = {1978},
	pages = {192{\textendash}198},
	publisher = {Cambridge University Press (CUP)},
	author = {Pollar, Moshe}
}
