Selection principles related to $\alpha_i$-properties
  We investigate selection principles which are motivated by Arhangel'ski\v{i}'s $\alpha_i$-properties, $i=1,2,3,4$, and their relations with classical selection principles. It will be shown that they are closely related to the selection principle $\sone$ and often are equivalent to it. 
Ljubi\v{s}a D.R. Ko\v{c}inac