1. Eton Rowing Lake;Allen;Current Archaeology,1996
2. Eton Rowing lake. The burial Traditions;Allen;Tarmac Papers,2000
3. Late-glacial deposits at Nazeing in the Lea Valley, North London;Allison;Philosophical Transactions of the Royal Society of London,1952
4. The identification of wild grasses and cereal pollen;Andersen;Danmarks Undersogelse Arbog,1979
5. Mineralisation and immobilisation of nitrogen in the decomposition of plant and animal residues;Bartholomew,1962