@article {18068,
	title = {Optimal doubly logarithmic parallel algorithms based on finding all nearest smaller values},
	journal = {Journal of Algorithms},
	volume = {14},
	year = {1993},
	month = {1993///},
	pages = {344 - 370},
	author = {Berkman,O. and Schieber,B. and Vishkin, Uzi}
}
