Roberts EC, Priscu JC, Laybourn-Parry J. Microplankton dynamics in a perennially ice-covered Antarctic lake-Lake Hoare. Freshwater Biology. 2004;27:238-249.

Laybourn-Parry J, Roberts EC, Bell ER. Mixotrophy as a survival strategy among planktonic protozoa in Antarctic lakes. In: Howard-Williams C, Davidson W, Broady P Antarctic Ecosystems: Models for Wider Ecological Understanding. Antarctic Ecosystems: Models for Wider Ecological Understanding. Caxton Press; 2000.

Roberts EC, Laybourn-Parry J. Mixotrophic cryptophytes and their predators in the Dry Valley lakes of Antarctica. Freshwater Biology. 1999;41(4):737-745. doi:10.1046/j.1365-2427.1999.00401.x.