@article{W1993,
author = {Andrew W Dilnot and Paul Johnson},
title = {Tax expenditures: the case of occupational pensions},
journal = {Fiscal Studies},
year = {1993},
month = {Feb},
volume = {14},
number = {1},
pages = {42-56},
issn = {Print: 0143-5671 Online: 1475-5890},
url = {http://onlinelibrary.wiley.com/doi/10.1111/j.1475-5890.1993.tb00342.x/abstract},
}