1. Series solution of freezing problem with the fixed surface radiation into a medium arbitrary varying temperature;Wesphal;Int. J. Heat Mass Transfer,1967
2. Heat Transfer in Cold Climates;Lunardini,1981
3. Heterogenic and syngenetic growth of permafrost;Lunardini,1994
4. Some estimates of the thermal effects of a heated pipeline in permafrost;Lachenbruch;US Geol. Surv. Circular,1970
5. Phase-change around insulated buried pipes: quasi-steady method;Lunardini;J. Energy Resour. Technol.,1981