A. Appleyard

The influence of soil conditions on the decomposition of organic matter in the soil

E. Russell, A. Appleyard, 1917, The Journal of Agricultural Science.

The Atmosphere of the Soil: Its Composition and the Causes of Variation

E. Russell, A. Appleyard, 1915, The Journal of Agricultural Science.

The Atmosphere of the Soil.

E. Russell, A. Appleyard, 1918 .