1. Solution of some problems in the theory of probabilities of significance in automatic telephone exchanges;Erlang;Post Office Elec. Engrs. J.,1918
2. Intensitätsschwankungen im Fernsprechverkehr;Palm;Ericsson Tech.,1943
3. Généralisation de la théorie probabliste des systèmes télé-phoniques sans dispositif d'attente;Pollaczek;Compt. Rend. Acad. Sci.,1953
4. The full availability group of trunks with an arbitrary distribution of the inter-arrival times and a negative exponential holding time distribution;Cohen;Simon Stevin. Wis. Natuurk. Tijdschr.,1957
5. On the generalization of Erlang's formula;Takács;Acta Math. Acad. Sci. Hung.,1956