1.  Quinn-Whelton N, Killen L, Guinee T, Buckley, F (2008)  "Detection of Abnormal Recordings in Irish Milk Recorded Data"  Irish Journal of Agricultural and Food Research 46:  117-127.

2. Quinn N., Killen L., Buckley F., (2007) "Modelling fran and proetien concentration curves for Irish dairy cows' Irish Journal of Agricultural and Food Research 45: 13-23.

3. Quinn N., Killen L., Buckley F., (2006) "Empirical Albegraic Modelling of Liveweight of Irish Dairy Cows over Lactation"
Livestock Science 103: 141-147.

4. Quinn N., Killen L., Buckley F., (2005) "Empirical Algebraic Modelling of Lactation Curves using Irish Data", Irish Journal of Agricultural and Food Research Irish Journal of Agricultural and Food Research 44: 1-13.

6. Gorg, H, Killen, L and Ruane, F (1998) "Non-standard Employment in Irish Manufacturing: Do Firm Characteristics Matter?" Labour 12(4):675-699

7. O’Kiely, P, Moloney, A P, Killen L, and Shannon, A (1997) "A Computer Program to Calculate the Cost of Providing Ruminants with Home-Produced Feedstuffs" Computers and Electronics in Agriculture: 19: 23-36

8. Conway, A G and Killen L(1987) "A Linear Programming Model of Grassland Management" Agricultural Systems 25(87): 51-62

9. Killen, L and Kavanagh, R (1981) "Energy Demand Projections and Preliminary Assessment of Conservation Potential" Ir. J. Environmental Science. 1: 76-84

10. Killen, L and Keane, M (1980) "Seasonality and the Irish Dairy Industry" Ir. J. Agric. Econ. Rur. Sociol. 8: 1-26

11. Killen, L and Keane, M (1979) "Reply to ‘Milk Production’ by C Jones" J. Opl. Res. Soc. 30: 283-285

12. Killen, L and Keane, M (1978) "A Linear Programming Model of Seasonality in Milk Production" J. Opl. Res. Soc. 29: 625-631

13. Killen, L and Keane, M (1978) "The Shape of Lactation Curves in Irish Dairy Herds" Ir. J. Agric. Res. 17: 267-282

14. Killen, L and Kearney, B (1978) "Optimal Dairy Cow Replacement Policy" Ir. J. Agric. Econ. Rur. Sociol. 7: 33-40

15. Connolly, J and Killen, L (1978) "Achieving Growth Targets in the Cattle Sector" Ir. J. Agric. Econ. Rur. Sociol. 7: 1-7

16. Conniffe, D and Killen L (1977) "Irish Consumer Expectations and the Adaptive Expectations Model" Economic and Social Review. 9: 71-78

17. Killen, L (1977) "Cattle Production: Past Trends and Short Term Outlook" Ir. J. Agric. Econ. Rur. Sociol. 6: 185-197

1. Killen, L (1982) "Energy Flow Optimisation Model – Ireland" Commission of the European Communities, Brussels.

2. Killen, L and Dunne, W (1989) "Impact of Renewable Derived Fuels on Energy and Agriculture Systems" Commission of the European Communities, Brussels.

Sourie, J-C and Killen, L (Editors) ‘Biomass: Recent Economic Studies. Elsevier Applied Science Publishers. 1986.

1. Several periodic and final contract reports to the Commission of the European Communities during the period 1980 – 1989.

2. Several popular articles in ‘Farm and Food Research’ published by Teagasc.

3. ‘Energy Forecasts for Ireland’ published in 1980 and 1982 by National Board for Science and Technology

4. ‘Impact of milk superlevy on agricultural output’ Situation and Outlook Series, Teagasc.

5. ‘The regional dimension of industrial policy and performance in the Republic of Ireland’ Lynn Killen and Frances Ruane. Trinity Economic Policy Paper Number 3 1998.

6. ‘Case studies of schools successful in science’ Finlayson, O and Killen L in Report of the Task Force on Physical Sciences, Department of Education, Dublin, 2002.

Annual Conference of Rural Economy Centre of Teagasc (several years)

Annual Conference of Operations Research and Management Society

Biomass – Recent Economic Studies (Brussels)

Solar Energy Society of Ireland

Dublin Economics Workshop (Kenmare)

Modelling Livestock Production Systems (Brussels)

Economic Change and Development: Prospects for Regions (Belfast)

Solar Energy Society of Ireland

Agricultural Research Forum

Progress in Synthetic Fuels (Germany)

Compstat 2004

ICAR Biennial Session and Interbull Meeting - Sousse, Tunisia.

Agricultural Research Forum

Conference on Applied Statistics in Ireland