Russell May. Coupon Collecting with Quotas. Electr. J. Comb., 15(1), 2008. [doi]
@article{May08-0, title = {Coupon Collecting with Quotas}, author = {Russell May}, year = {2008}, url = {http://www.combinatorics.org/Volume_15/Abstracts/v15i1n31.html}, researchr = {https://researchr.org/publication/May08-0}, cites = {0}, citedby = {0}, journal = {Electr. J. Comb.}, volume = {15}, number = {1}, }